Joseph, K., & Williams, C. (1970). Climate, soil and crop production in the humid tropics. Oxford university press.
استشهاد بنمط شيكاغوJoseph, K.T, و C.N Williams. Climate, Soil and Crop Production in the Humid Tropics. Kualalumpur: Oxford university press, 1970.
MLA استشهادJoseph, K.T, و C.N Williams. Climate, Soil and Crop Production in the Humid Tropics. Oxford university press, 1970.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.