Cita APA (7a ed.)

COOPER, D. R., & EMORY, C. W. (1995). Business research methods.-- ed.5. Irwin.

Cita Chicago Style (17a ed.)

COOPER, Donald R., y C. William EMORY. Business Research Methods.-- Ed.5. Chicago: Irwin, 1995.

Cita MLA (9a ed.)

COOPER, Donald R., y C. William EMORY. Business Research Methods.-- Ed.5. Irwin, 1995.