The scope of drug abuse in Puerto Rico : supply and demand reduction : hearings before the Select Committee on Narcotics Abuse and Control, House of Representatives, Ninety-sixth Congress, first session, April 19, 20, and 21, 1979.

Los anfibios y reptiles de Puerto Rico = The amphibians and reptiles of Puerto Rico /
by: Rivero, Juan A.
Published: (1978)

Once in Puerto Rico /
by: Belpré, Pura
Published: (1973)

Lichens in Puerto Rico : an ecosystem approach /
by: Mercado-Díaz, Joel A.
Published: (2015)

The politics of language in Puerto Rico /
by: Barreto, Amílcar Antonio
Published: (2001)

Puerto Rico and the U.S. Virgin Islands drug threat assessment.
Published: (2003)

Adjustment of Puerto Rico's public debts /
by: Austin, D. Andrew
Published: (2022)

The Puerto Rico breeding bird atlas /
by: Castro-Prieto, Jessica
Published: (2021)

Puerto Rico : hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Thirteenth Congress, first session, to receive testimony on the November 6, 2012, referendum on the political status of Puerto Rico and the administration's response, August 1, 2013.
Published: (2013)

Architecture in Puerto Rico /
by: Fernandez, Jose Antonio, 1898-
Published: (1965)

The management and control of water in Puerto Rico /
by: Avilés Cordero, Isidoro
Published: (1969)

Slave families and the hato economy in Puerto Rico /
by: Stark, David Martin, 1965-
Published: (2015)

The status of Puerto Rico's forests, 2003 /
by: Brandeis, Thomas James
Published: (2007)

Factfinding mission to Colombia and Puerto Rico : a report of the Select Committee on Narcotics Abuse and Control, Ninety-sixth Congress, first session.
Published: (1979)

Incidence of damage and cull in Puerto Rico's timber resource /
by: Anderson, Robert L. (Robert Lee), 1944-
Published: (1982)

Popular expression and national identity in Puerto Rico : the struggle for self, community, and nation /
by: Guerra, Lillian
Published: (1998)

Water quality and landscape processes of four watersheds in eastern Puerto Rico /
Published: (2012)

Puerto Rico : Economy, Debt, and Options for Congress.
Published: (2015)

Natural hazards in Puerto Rico : attitudes, experience, and behavior of homeowners /
by: Palm, Risa
Published: (1993)

Geology, geochemistry, geophysics, mineral occurrences, and mineral resource assessment for the commonwealth of Puerto Rico /
Published: (2001)

U.S. Geological Survey programs in Puerto Rico.
Published: (1997)

Sterilization and fertility decline in Puerto Rico /
by: Presser, Harriet B.
Published: (1973)

Workshop on energy planning resources for Puerto Rico : San Juan, March 19, 2019 : Mayaguez, March 22, 2019.
Published: (2019)

Medical and hospital care in Puerto Rico ; a report submitted to the Governor and the Legislature of the Commonwealth of Puerto Rico /
Published: (1962)

Los bejucos de Puerto Rico.
by: Acevedo-Rodríguez, Pedro
Published: (1985)

House Committee on Natural Resources report on Puerto Rico's earthquakes.
Published: (2020)

Plantas medicinales de Puerto Rico : folklore y fundamentos cientificos /
by: Núñez Meléndez, Esteban, 1910-
Published: (1982)

Proposal to improve the seismic network and earthquake hazard evaluation of Puerto Rico /
Published: (1989)

Estimated water withdrawals and use in Puerto Rico, 2015 /
by: Molina-Rivera, Wanda L., et al.
Published: (2021)

Floods of September 6, 1960, in eastern Puerto Rico /
by: Barnes, Harry Hawthorne, 1925-
Published: (1961)

Puerto Rico sugar facts /
by: Smith, Dudley, 1904-

The transmission of dengue fever in Puerto Rico : an epidemiologic approach using a Geographic Information System /
Published: (1998)

Puerto Rico Aqueduct and Sewer Authority, Sergio Cuevas Bustamante Filtration Plant, Frujillo Alto, Puerto Rico /
by: Ewers, Lynda M.
Published: (1998)

Analysis of flow durations for selected streams in Puerto Rico through 1994 /
by: Atkins, J. B.
Published: (1999)

Historia de la esclavitud negra en Puerto Rico /
by: Díaz Soler, Luis M.
Published: (1965)

The rural land classification program of Puerto Rico.
Published: (1952)

Puerto Rico.
Published: (1999)