Cita APA (7a ed.)
(1981). Yearbook of International Trade Statistics 1980 (1. ed.). United Nations.
Cita Chicago Style (17a ed.)
Yearbook of International Trade Statistics 1980. 1. ed. New York: United Nations, 1981.
Cita MLA (9a ed.)
Yearbook of International Trade Statistics 1980. 1. ed. United Nations, 1981.
Precaución: Estas citas no son 100% exactas.