APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.