Lamb, C. W., Hair, J. F., & McDaniel, C. D. (1999). Marketing (5th ed.). South-Western College Pub..

Lamb, Charles W., Joseph F. Hair, and Carl D. McDaniel. Marketing. 5th ed. Cincinnati, OH: South-Western College Pub., 1999.

Lamb, Charles W., et al. Marketing. 5th ed. South-Western College Pub., 1999.