FAO. (1990). FAO farm systems management series N.1: Guidelines for the conduct of a training course in farming systems development. Rome: FAO.
استشهاد بنمط شيكاغوFAO. FAO Farm Systems Management Series N.1: Guidelines for the Conduct of a Training Course in Farming Systems Development. Rome: FAO, 1990.
MLA استشهادFAO. FAO Farm Systems Management Series N.1: Guidelines for the Conduct of a Training Course in Farming Systems Development. Rome: FAO, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.