Não informado. (1980). International Agricultural Development. Pharos Publishing Services.
Style de citation Chicago (17e éd.)Não informado. International Agricultural Development. Berks, Inglaterra: Pharos Publishing Services, 1980.
Style de citation MLA (8e éd.)Não informado. International Agricultural Development. Pharos Publishing Services, 1980.
Attention : ces citations peuvent ne pas être correctes à 100%.