Cita APA (7a ed.)

COOPER, D. R. (2003). Business research methods(ada CD). McGraw-Hill.

Cita Chicago Style (17a ed.)

COOPER, Donald R. Business Research Methods(ada CD). McGraw-Hill, 2003.

Cita MLA (8a ed.)

COOPER, Donald R. Business Research Methods(ada CD). McGraw-Hill, 2003.