APA aipamena

Waldroop, J. (2000). The 12 Bad Habits. HarperCollins.

Chicago Style aipamena

Waldroop, James. The 12 Bad Habits. New York: HarperCollins, 2000.

MLA aipamena

Waldroop, James. The 12 Bad Habits. HarperCollins, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.