APA ציטוט

Theobald,Robert. (1962). The challenge of abundance: A mentor book. The New American Library of World Literature.

Chicago Edition Citation

Theobald,Robert. The Challenge of Abundance: A Mentor Book. New York: The New American Library of World Literature, 1962.

ציטוט MLA

Theobald,Robert. The Challenge of Abundance: A Mentor Book. The New American Library of World Literature, 1962.