APA
Walker O. C. . M. J. W. &. B. H. W. [. a., . (2006). Marketing Strategy. Tata McGraw Hill, New Delhi: .
Chicago
Walker Orville C Mullins John W & Boyd Harper W [et al], . 2006. Marketing Strategy. Tata McGraw Hill, New Delhi: .
Harvard
Walker O. C. . M. J. W. &. B. H. W. [. a., . (2006). Marketing Strategy. Tata McGraw Hill, New Delhi: .
MLA
Walker Orville C Mullins John W & Boyd Harper W [et al], . Marketing Strategy. Tata McGraw Hill, New Delhi: . 2006.