Citazione Stile APA (7a Edizione)

COREY E R. (1985). PROBLEMS IN MARKETING (6TH.). MCGRAW-HILL.

Citazione stile Chigago Style (17a edizione)

COREY E R. PROBLEMS IN MARKETING. 6TH. NEW YORK: MCGRAW-HILL, 1985.

Citatione MLA (9a ed.)

COREY E R. PROBLEMS IN MARKETING. 6TH. MCGRAW-HILL, 1985.