Cita APA (7th ed.)

WENTZ WALTER B. (1979). MARKETING. WEST PUBLICATIONS COMPANY.

Cita Chicago (17th ed.)

WENTZ WALTER B. MARKETING. BOSTON: WEST PUBLICATIONS COMPANY, 1979.

Cita MLA (9th ed.)

WENTZ WALTER B. MARKETING. WEST PUBLICATIONS COMPANY, 1979.