APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (9. izdanje)

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