Gaya APA

Tschohl, J., penerjemah, , T, S. (2003). Achieving excellence through customer service : unggul bersaing melalui layanan pelanggan . Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Tschohl, John., penerjemah, , Tjita, Singo. "Achieving excellence through customer service : unggul bersaing melalui layanan pelanggan". Jakarta: Gramedia Pustaka Utama, 2003. Teks.