APA (7e ed.) Bronvermelding

Não informado. (1935). Soap, perfumery and cosmetics. United Trade Press.

Chicago (17e ed.) Bronvermelding

Não informado. Soap, Perfumery and Cosmetics. London: United Trade Press, 1935.

MLA (8e ed.) Bronvermelding

Não informado. Soap, Perfumery and Cosmetics. United Trade Press, 1935.

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