APA (7e ed.) Bronvermelding

Não informado. (1975). Abstracts on tropical agriculture. Royal Tropical Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Abstracts on Tropical Agriculture. Amsterdam: Royal Tropical Institute, 1975.

MLA (8e ed.) Bronvermelding

Não informado. Abstracts on Tropical Agriculture. Royal Tropical Institute, 1975.

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