APA-viite (7. p.)

COOPER DONALD R. (2009). BUSINESS RESEARCH METHODS. TATA MCGRAW-HILL.

Chicago-viite (17. p.)

COOPER DONALD R. BUSINESS RESEARCH METHODS. NEW DELHI: TATA MCGRAW-HILL, 2009.

MLA-viite (9. p.)

COOPER DONALD R. BUSINESS RESEARCH METHODS. TATA MCGRAW-HILL, 2009.