एपीए उद्धरण

Hopson, B., & Scally, M. (1994). Twelve steps to success through service. Excel.

शिकागो स्टाइल उद्धरण

Hopson, Barrie, और Mike Scally. Twelve Steps to Success Through Service. New Delhi: Excel, 1994.

एमएलए उद्धरण

Hopson, Barrie, और Mike Scally. Twelve Steps to Success Through Service. Excel, 1994.