Παραπομπή APA

Peale Norman Vincent [ed.]. (2002). Courage and confidence: An anthology. Vermilion.

Παραπομπή Chicago Style

Peale Norman Vincent [ed.]. Courage and Confidence: An Anthology. London: Vermilion, 2002.

Παραπομπή MLA

Peale Norman Vincent [ed.]. Courage and Confidence: An Anthology. Vermilion, 2002.