APA-viite (7. p.)

ZETHAMAL, V. A. (2011). SERVICE MARKETING (5TH.). TMH.

Chicago-viite (17. p.)

ZETHAMAL, VALARIE A. SERVICE MARKETING. 5TH. DELHI: TMH, 2011.

MLA-viite (9. p.)

ZETHAMAL, VALARIE A. SERVICE MARKETING. 5TH. TMH, 2011.