APA (7e ed.) Bronvermelding

Não informado. (1964). Commodity yearbook statistical abstract service. Commodity Research Bureau.

Chicago (17e ed.) Bronvermelding

Não informado. Commodity Yearbook Statistical Abstract Service. New York: Commodity Research Bureau, 1964.

MLA (8e ed.) Bronvermelding

Não informado. Commodity Yearbook Statistical Abstract Service. Commodity Research Bureau, 1964.

Let op: Deze citaties zijn niet altijd 100% accuraat.