APA (7e ed.) Bronvermelding

Não informado. (1980). International Agricultural Development. Pharos Publishing Services.

Chicago (17e ed.) Bronvermelding

Não informado. International Agricultural Development. Berks, Inglaterra: Pharos Publishing Services, 1980.

MLA (8e ed.) Bronvermelding

Não informado. International Agricultural Development. Pharos Publishing Services, 1980.

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