APA استشهاد

Kerin, R. A. (2011). Strategic Marketing Problems (12th ed.). Pearson.

استشهاد بنمط شيكاغو

Kerin, Roger A. Strategic Marketing Problems. 12th ed. New Delhi: Pearson, 2011.

MLA استشهاد

Kerin, Roger A. Strategic Marketing Problems. 12th ed. Pearson, 2011.