APA (7. basım) Alıntı
O'Sullivan, L. (2010). Client service excellence: The 10 commandments. Knowres Publishing.
Chicago Style (17. basım) Atıf
O'Sullivan, Larry. Client Service Excellence: The 10 Commandments. Randburg, Republic of South Africa: Knowres Publishing, 2010.
MLA (9th ed.) Atıf
O'Sullivan, Larry. Client Service Excellence: The 10 Commandments. Knowres Publishing, 2010.
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