Walker, O. C. &. O. (2011). Marketing Strategy: A decision -focused approach (5.). Tata McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Walker, Orville C & Others. Marketing Strategy: A Decision -focused Approach. 5. New Delhi: Tata McGraw-Hill, 2011.
Citatione MLA (9a ed.)Walker, Orville C & Others. Marketing Strategy: A Decision -focused Approach. 5. Tata McGraw-Hill, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.