FAO. (1989). FAO research and technology paper N.4: Sustainable agricultural production: implications for international agricultural research. Rome: FAO.
استشهاد بنمط شيكاغوFAO. FAO Research and Technology Paper N.4: Sustainable Agricultural Production: Implications for International Agricultural Research. Rome: FAO, 1989.
MLA استشهادFAO. FAO Research and Technology Paper N.4: Sustainable Agricultural Production: Implications for International Agricultural Research. Rome: FAO, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.