APA (7th ed.) Citation

Riva, J. P. (1990). Venezuelan petroleum: A source of increasing U.S. imports? Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Riva, Joseph P. Venezuelan Petroleum: A Source of Increasing U.S. Imports? [Washington, D.C.]: Congressional Research Service, Library of Congress, 1990.

MLA (9th ed.) Citation

Riva, Joseph P. Venezuelan Petroleum: A Source of Increasing U.S. Imports? Congressional Research Service, Library of Congress, 1990.