Cita APA (7th ed.)

GUPTA P K. (2002). SERVICES MARKETING. EVEREST PUBLICATIONS.

Cita Chicago (17th ed.)

GUPTA P K. SERVICES MARKETING. PUNE: EVEREST PUBLICATIONS, 2002.

Cita MLA (9th ed.)

GUPTA P K. SERVICES MARKETING. EVEREST PUBLICATIONS, 2002.