Report of committee appointed by Postmaster-General to investigate condition of postal service on island of Porto Rico.

Agricultural resources and capabilities of Porto Rico : message from the President of the United States, transmitting a report on investigations of the agricultural resources and capabilities of Porto Rico with special reference to the establishment of an agricultural experiment station in that island.
Published: (1901)

The journal of the Department of Agriculture of Porto Rico.
Published: (1917)

Acts and resolves of the legislative assembly of Porto Rico.

Mineral industries of Porto Rico.
Published: (1904)

Leguminosae of Porto Rico.
Published: (1907)

Birds of Porto Rico /
by: Wetmore, Alexander, 1886-1978
Published: (1916)

Market in Porto Rico.
Published: (1928)

Civil Government for Porto Rico : hearings before the United States Senate Committee on Pacific Islands and Porto Rico, Sixty-Third Congress, second session, on Feb. 25, Mar. 9, June 18, 1914.
Published: (1914)

The aborigines of Porto Rico and neighboring islands.
by: Fewkes, Jesse Walter, 1850-1930
Published: (1970)

Government of Porto Rico.
Published: (1909)

Porto Rico and its problems /
by: Clark, Victor S. (Victor Selden), 1868-1946
Published: (1930)

Economic plants of Porto Rico.
Published: (1903)

Porto Rico : hearings before the United States House Committee on Insular Affairs, Sixty-Ninth Congress, first session, on May 4, 5, 11, 1926.
Published: (1926)

Pteridophyta of Porto Rico and the Virgin Islands /
by: Maxon, William R. (William Ralph), 1877-1948
Published: (1927)

Market in Porto Rico.

Popular Election of the Governor of Porto Rico : hearings before the United States House Committee on Insular Affairs, Seventieth Congress, first session, on May 16, 1928.
Published: (1928)

Insular and municipal finances in Porto Rico for fiscal year 1902-3.
Published: (1905)

Relief of Porto Rico : hearings before the United States Senate Committee on Territories and Insular Possessions, and House Committee on Insular Affairs, Seventieth Congress, second session, on Dec. 10, 11, 1928.
Published: (1928)

The geology of the San Juan district, Porto Rico /
by: Semmes, Douglas Ramsay, 1892-
Published: (1919)

Porto Rico review of public health and tropical medicine.
Published: (1927)

Porto Rico journal of public health and tropical medicine.
Published: (1929)

Report of the Commissioner of the Interior for Porto Rico.
Published: (1902)

Report on currency question of Porto Rico.
Published: (1899)

To amend the Organic Act of Porto Rico.
Published: (1931)

To amend the Organic Act of Porto Rico.
Published: (1924)

Rubber cultivation for Porto Rico.
Published: (1900)

The birds of Porto Rico and the Virgin Islands /
by: Wetmore, Alexander, 1886-1978
Published: (1927)

Legislation affecting matters in Porto Rico. Letter from the Secretary of State, relative to pending legislation affecting matters in Porto Rico.
Published: (1900)

The penal code of the islands of Cuba and Porto Rico.
Published: (1898)

To Amend the Organic Act of Porto Rico, Approved March 2, 1917, and To Extend the Provisions of Certain Laws to Porto Rico : hearings before the United States Senate Committee on Territories and Insular Affairs, Seventy-First Congress, third session, on Dec. 18, 1930.
Published: (1930)

Report of the Porto Rico Agricultural Experiment Station.
Published: (1915)

Electrical industries of Porto Rico,
Published: (1909)

Report of the Commissioner of Education for Porto Rico.
Published: (1900)

Puerto Rico : culture, politics, and identity /
by: Morris, Nancy
Published: (1995)

Hydrogeology of the karst of Puerto Rico /
by: Giusti, Ennio V.
Published: (1978)

Annual report of the Porto Rico Agricultural Experiment Station for ...