Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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