APA aipamena

WILLSMER RAY. (1984). BASIC ART OF MARKETING (2ND.). BUSINESS PUBLICATION.

Chicago Style aipamena

WILLSMER RAY. BASIC ART OF MARKETING. 2ND. LONDON: BUSINESS PUBLICATION, 1984.

MLA aipamena

WILLSMER RAY. BASIC ART OF MARKETING. 2ND. BUSINESS PUBLICATION, 1984.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.