APA (7th ed.) Zitazioa
Ward, C. G. (1984). The Billy Graham Christian worker's handbook: A layman's guide for soul winning and personal counseling. World Wide Publications.
Chicago Style (17th ed.) Zitazioa
Ward, Charles G. The Billy Graham Christian Worker's Handbook: A Layman's Guide for Soul Winning and Personal Counseling. Minneapolis, Minn.: World Wide Publications, 1984.
MLA (9th ed.) Zitazioa
Ward, Charles G. The Billy Graham Christian Worker's Handbook: A Layman's Guide for Soul Winning and Personal Counseling. World Wide Publications, 1984.
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