Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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