APA استشهاد

Luck, D. J., & Day, G. S. (1981). Marketing research/5e. Prentice-Hall of India.

استشهاد بنمط شيكاغو

Luck, David J., و George S. Day. Marketing Research/5e. New Delhi: Prentice-Hall of India, 1981.

MLA استشهاد

Luck, David J., و George S. Day. Marketing Research/5e. Prentice-Hall of India, 1981.