Food and Agriculture Organization of the United Nations. (1980). Land evaluation guidelines for rainfed agriculture: Report of an expert consultation held in Rome, 12-14 December 1979. FAO.
Chicago-referens (17:e uppl.)Food and Agriculture Organization of the United Nations. Land Evaluation Guidelines for Rainfed Agriculture: Report of an Expert Consultation Held in Rome, 12-14 December 1979. Rome: FAO, 1980.
MLA-referens (9:e uppl.)Food and Agriculture Organization of the United Nations. Land Evaluation Guidelines for Rainfed Agriculture: Report of an Expert Consultation Held in Rome, 12-14 December 1979. FAO, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.