(1981). Irrigated soybean production in Arid and Semi-Arid regions. Illinois: University of Illinois.
استشهاد بنمط شيكاغوIrrigated Soybean Production in Arid and Semi-Arid Regions. Illinois: University of Illinois, 1981.
MLA استشهادIrrigated Soybean Production in Arid and Semi-Arid Regions. Illinois: University of Illinois, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.