Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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