Cita APA (7a ed.)
(1979). Yearbook of International Trade Statistics 1978. United Nations.
Cita Chicago Style (17a ed.)
Yearbook of International Trade Statistics 1978. New York: United Nations, 1979.
Cita MLA (9a ed.)
Yearbook of International Trade Statistics 1978. United Nations, 1979.
Precaución: Estas citas no son 100% exactas.