United States. Congress. Senate. Committee on Foreign Relations & ProQuest (Firm). (1990). The drug summit in Cartagena, Colombia: Hearing before the Committee on Foreign Relations, United States Senate, One Hundred First Congress, second session, February 28, 1990. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Foreign Relations and ProQuest (Firm). The Drug Summit in Cartagena, Colombia: Hearing Before the Committee on Foreign Relations, United States Senate, One Hundred First Congress, Second Session, February 28, 1990. Washington: U.S. G.P.O., 1990.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Foreign Relations and ProQuest (Firm). The Drug Summit in Cartagena, Colombia: Hearing Before the Committee on Foreign Relations, United States Senate, One Hundred First Congress, Second Session, February 28, 1990. U.S. G.P.O., 1990.