Seitz, W. D., Nelson, G. C., & Halcrow, H. G. (1994). Economics of resources, agriculture, and food. New York ; Singapore: McGraw-Hill.
استشهاد بنمط شيكاغوSeitz, Wesley D., Gerald C. Nelson, و Harold G. Halcrow. Economics of Resources, Agriculture, and Food. New York ; Singapore: McGraw-Hill, 1994.
MLA استشهادSeitz, Wesley D., Gerald C. Nelson, و Harold G. Halcrow. Economics of Resources, Agriculture, and Food. New York ; Singapore: McGraw-Hill, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.