APA aipamena

Peale, N. V. (1992). The power of positive living. Vermilion.

Chicago Style aipamena

Peale, Norman Vincent. The Power of Positive Living. London: Vermilion, 1992.

MLA aipamena

Peale, Norman Vincent. The Power of Positive Living. Vermilion, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.