APA
(2003). Marketing : Concepts and Strategies. Boston: Houghton Mifflin Company.
Chicago
2003. Marketing : Concepts and Strategies. Boston: Houghton Mifflin Company.
Harvard
(2003). Marketing : Concepts and Strategies. Boston: Houghton Mifflin Company.
MLA
Marketing : Concepts and Strategies. Boston: Houghton Mifflin Company. 2003.