APA aipamena

WOODRUFFE HELEN. (1997). SERVICES MARKETING. MACMILLAN.

Chicago Style aipamena

WOODRUFFE HELEN. SERVICES MARKETING. NEW DELHI: MACMILLAN, 1997.

MLA aipamena

WOODRUFFE HELEN. SERVICES MARKETING. MACMILLAN, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.