APA (7e ed.) Bronvermelding

Não informado. (1982). Fertilizers and agriculture. International Fertilizer Industry Association.

Chicago (17e ed.) Bronvermelding

Não informado. Fertilizers and Agriculture. Paris: International Fertilizer Industry Association, 1982.

MLA (8e ed.) Bronvermelding

Não informado. Fertilizers and Agriculture. International Fertilizer Industry Association, 1982.

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