Gaya APA
Tschohl, J. et al (2003).
Achieving excellence through customer service (Cetakan Pertama).
Jakarta:
PT Gamedia Pustaka Utama.
Gaya MLA
Tschohl, John. et al.
"Achieving excellence through customer service".
Cetakan Pertama
Jakarta:
PT Gamedia Pustaka Utama,
2003.
Text.