FAO. (1991). FAO statistical development series N.2e: Supplement for Africa programme for the 1990 world census of agriculture. Rome: FAO.
استشهاد بنمط شيكاغوFAO. FAO Statistical Development Series N.2e: Supplement for Africa Programme for the 1990 World Census of Agriculture. Rome: FAO, 1991.
MLA استشهادFAO. FAO Statistical Development Series N.2e: Supplement for Africa Programme for the 1990 World Census of Agriculture. Rome: FAO, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.