APA aipamena

Arnold, F. (1873). Turning points in life. Harper & Brothers.

Chicago Style aipamena

Arnold, Frederick. Turning Points in Life. New York: Harper & Brothers, 1873.

MLA aipamena

Arnold, Frederick. Turning Points in Life. Harper & Brothers, 1873.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.