APA-referens (7:e uppl.)
O'Sullivan, L. (2010). Client service excellence: The 10 commandments. Knowres Publishing.
Chicago-referens (17:e uppl.)
O'Sullivan, Larry. Client Service Excellence: The 10 Commandments. Randburg, Republic of South Africa: Knowres Publishing, 2010.
MLA-referens (9:e uppl.)
O'Sullivan, Larry. Client Service Excellence: The 10 Commandments. Knowres Publishing, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.