Não informado. (1964). Commodity yearbook statistical abstract service. Commodity Research Bureau.
Style de citation Chicago (17e éd.)Não informado. Commodity Yearbook Statistical Abstract Service. New York: Commodity Research Bureau, 1964.
Style de citation MLA (8e éd.)Não informado. Commodity Yearbook Statistical Abstract Service. Commodity Research Bureau, 1964.
Attention : ces citations peuvent ne pas être correctes à 100%.