APA aipamena

Callahan, S. C., & Egan, E. (1989). Psychology and the works of mercy.

Chicago Style aipamena

Callahan, Sidney Cornelia, and Eileen Egan. Psychology and the Works of Mercy. 1989.

MLA aipamena

Callahan, Sidney Cornelia, and Eileen Egan. Psychology and the Works of Mercy. 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.