Jeffrey A. Kottler. (1994). Advanced group leadership. Pacific Grove, CA: Brooks/Cole.
शिकागो स्टाइल उद्धरणJeffrey A. Kottler. Advanced Group Leadership. Pacific Grove, CA: Brooks/Cole, 1994.
एमएलए उद्धरणJeffrey A. Kottler. Advanced Group Leadership. Pacific Grove, CA: Brooks/Cole, 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.