Cita APA (7th ed.)

TULL DONALD S. (1990). MARKETING RESEARCH: MEASUREMENT & METHOD (5TH.). MACMILLAN.

Cita Chicago (17th ed.)

TULL DONALD S. MARKETING RESEARCH: MEASUREMENT & METHOD. 5TH. NEW YORK: MACMILLAN, 1990.

Cita MLA (9th ed.)

TULL DONALD S. MARKETING RESEARCH: MEASUREMENT & METHOD. 5TH. MACMILLAN, 1990.