McFadden, C. H. (1980). Study guide for the third edition of Keeton's biological science. New York: W.W. Norton & Company.
استشهاد بنمط شيكاغوMcFadden, Carol Hardy. Study Guide for the Third Edition of Keeton's Biological Science. New York: W.W. Norton & Company, 1980.
MLA استشهادMcFadden, Carol Hardy. Study Guide for the Third Edition of Keeton's Biological Science. New York: W.W. Norton & Company, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.