Cita APA (7th ed.)

RUDDICK M E. (1983). MARKETING RESEARCH HANDBOOK: A DECISION ORIENTED APPROACH. PRENTICE -HALL INTERNATIONAL, INC.

Cita Chicago (17th ed.)

RUDDICK M E. MARKETING RESEARCH HANDBOOK: A DECISION ORIENTED APPROACH. NEW JERSEY: PRENTICE -HALL INTERNATIONAL, INC, 1983.

Cita MLA (9th ed.)

RUDDICK M E. MARKETING RESEARCH HANDBOOK: A DECISION ORIENTED APPROACH. PRENTICE -HALL INTERNATIONAL, INC, 1983.