Não informado. (1980). International Agricultural Development. Pharos Publishing Services.
Chicagoスタイル(17版)引用形式Não informado. International Agricultural Development. Berks, Inglaterra: Pharos Publishing Services, 1980.
MLA(8版)引用形式Não informado. International Agricultural Development. Pharos Publishing Services, 1980.
警告: この引用は必ずしも正確ではありません.