Citazione Stile APA (7a Edizione)

Walker, O. C. (2009). Marketing Strategy (5th.). Tata McGraw Hill Education Private Limited.

Citazione stile Chigago Style (17a edizione)

Walker, Orville C. Marketing Strategy. 5th. New Delhi: Tata McGraw Hill Education Private Limited, 2009.

Citatione MLA (9a ed.)

Walker, Orville C. Marketing Strategy. 5th. Tata McGraw Hill Education Private Limited, 2009.