APA
Kurtz D. L., Boone L. E., . (2006). Principles of marketing. Canada: Cengage Learning.
Chicago
Kurtz David L, Boone Louis E, . 2006. Principles of marketing. Canada: Cengage Learning.
Harvard
Kurtz D. L., Boone L. E., . (2006). Principles of marketing. Canada: Cengage Learning.
MLA
Kurtz David L, Boone Louis E, . Principles of marketing. Canada: Cengage Learning. 2006.