International Development Research Center. Agriculture. Food and Nutrition Sciences Division. (1988). Crop and animal production systems program. International Development Research Centre.
Citazione stile Chigago Style (17a edizione)International Development Research Center. Agriculture. Food and Nutrition Sciences Division. Crop and Animal Production Systems Program. Ottawa, Ont: International Development Research Centre, 1988.
Citatione MLA (9a ed.)International Development Research Center. Agriculture. Food and Nutrition Sciences Division. Crop and Animal Production Systems Program. International Development Research Centre, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.