APA Edition Citation

Corey, E. R. a. . L. (1985). Problems in marketing (6 Edition.).

Chicago Edition Citation

Corey, E Raymond and Lovelock. Problems in Marketing. 6 Edition. Mcgraw Hill Book Co., New York, 1985.

MLA Edition Citation

Corey, E Raymond and Lovelock. Problems in Marketing. 6 Edition. 1985.