APA aipamena

PAUL R.TIMM,PH.D. (2005). 50 WAYS TO WIN NEW CUSTOMERS. PT Bhuana Ilmu Populer.

Chicago Style aipamena

PAUL R.TIMM,PH.D. 50 WAYS TO WIN NEW CUSTOMERS. PT Bhuana Ilmu Populer, 2005.

MLA aipamena

PAUL R.TIMM,PH.D. 50 WAYS TO WIN NEW CUSTOMERS. PT Bhuana Ilmu Populer, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.