Não informado. (1963). Intensive Agriculture. Ministry of Agriculture and Rural Development, Directorate of Extension.
Chicago-Zitierstil (17. Ausg.)Não informado. Intensive Agriculture. New Delhi: Ministry of Agriculture and Rural Development, Directorate of Extension, 1963.
MLA-Zitierstil (8. Ausg.)Não informado. Intensive Agriculture. Ministry of Agriculture and Rural Development, Directorate of Extension, 1963.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.