APA (7e ed.) Bronvermelding

Não informado. (1965). Journal of Purchasing. National Association of Purchasing Agents.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of Purchasing. New York: National Association of Purchasing Agents, 1965.

MLA (8e ed.) Bronvermelding

Não informado. Journal of Purchasing. National Association of Purchasing Agents, 1965.

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