(1988). Global perspectives on agroecology and sustainable agricultural systems: Proceedings of the sisth international scientific conference of the international federation of organic agricluture movements. Santa Cruz: Agroecology Program University of California.
استشهاد بنمط شيكاغوGlobal Perspectives On Agroecology and Sustainable Agricultural Systems: Proceedings of the Sisth International Scientific Conference of the International Federation of Organic Agricluture Movements. Santa Cruz: Agroecology Program University of California, 1988.
MLA استشهادGlobal Perspectives On Agroecology and Sustainable Agricultural Systems: Proceedings of the Sisth International Scientific Conference of the International Federation of Organic Agricluture Movements. Santa Cruz: Agroecology Program University of California, 1988.