APA (7e ed.) Bronvermelding

Não informado. (1952). National fertilizer review. National Fertilizer Association.

Chicago (17e ed.) Bronvermelding

Não informado. National Fertilizer Review. Washington: National Fertilizer Association, 1952.

MLA (8e ed.) Bronvermelding

Não informado. National Fertilizer Review. National Fertilizer Association, 1952.

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