International Development Research Center. Agriculture. Food and Nutrition Sciences Division. (1988). Crop and animal production systems program. International Development Research Centre.
Chicago (17e ed.) BronvermeldingInternational Development Research Center. Agriculture. Food and Nutrition Sciences Division. Crop and Animal Production Systems Program. Ottawa, Ont: International Development Research Centre, 1988.
MLA (9e ed.) BronvermeldingInternational Development Research Center. Agriculture. Food and Nutrition Sciences Division. Crop and Animal Production Systems Program. International Development Research Centre, 1988.
Let op: Deze citaties zijn niet altijd 100% accuraat.