Kellogg, C. E., & Knapp, D. C. (1966). The college of agriculture: Science in the public service. New York: McGraw-Hill.
استشهاد بنمط شيكاغوKellogg, Charles E., و David C. Knapp. The College of Agriculture: Science in the Public Service. New York: McGraw-Hill, 1966.
MLA استشهادKellogg, Charles E., و David C. Knapp. The College of Agriculture: Science in the Public Service. New York: McGraw-Hill, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.