APA (7th ed.) Zitazioa
Collins, G. R. (2007). Christian counseling: A comprehensive guide (3rd ed.). Thomas Nelson.
Chicago Style (17th ed.) Zitazioa
Collins, Gary R. Christian Counseling: A Comprehensive Guide. 3rd ed. Nashville: Thomas Nelson, 2007.
MLA (9th ed.) Zitazioa
Collins, Gary R. Christian Counseling: A Comprehensive Guide. 3rd ed. Thomas Nelson, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.