Cita APA (7th ed.)

KRESS GEORGE. (1988). MARKETING RESEARCH (3.). PRENTICE -HALL INTERNATIONAL, INC.

Cita Chicago (17th ed.)

KRESS GEORGE. MARKETING RESEARCH. 3. LONDNN: PRENTICE -HALL INTERNATIONAL, INC, 1988.

Cita MLA (9th ed.)

KRESS GEORGE. MARKETING RESEARCH. 3. PRENTICE -HALL INTERNATIONAL, INC, 1988.