APA (7th ed.) Citation

(1992). Puerto Rico: Proceso plebiscitario, 1989-1991 = Puerto Rico : political status refendum, 1989-1991. Ramallo Bros. Print.

Chicago Style (17th ed.) Citation

Puerto Rico: Proceso Plebiscitario, 1989-1991 = Puerto Rico : Political Status Refendum, 1989-1991. Hato Rey, P.R.: Ramallo Bros. Print, 1992.

MLA (9th ed.) Citation

Puerto Rico: Proceso Plebiscitario, 1989-1991 = Puerto Rico : Political Status Refendum, 1989-1991. Ramallo Bros. Print, 1992.

Warning: These citations may not always be 100% accurate.