Theobald,Robert. (1962). The challenge of abundance: A mentor book. The New American Library of World Literature.
استشهاد بنمط شيكاغوTheobald,Robert. The Challenge of Abundance: A Mentor Book. New York: The New American Library of World Literature, 1962.
MLA استشهادTheobald,Robert. The Challenge of Abundance: A Mentor Book. The New American Library of World Literature, 1962.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.