(1980). Improvement and production of maize, sorghum and millet. Food and Agriculture Organization of the United Nations.
Chicago-referens (17:e uppl.)Improvement and Production of Maize, Sorghum and Millet. Rome: Food and Agriculture Organization of the United Nations, 1980.
MLA-referens (9:e uppl.)Improvement and Production of Maize, Sorghum and Millet. Food and Agriculture Organization of the United Nations, 1980.