APA استشهاد

Lovelock, C. H., & Weinbergh, C. B. (1996). Marketing Challenges: Case and services (3rd ed.). Macmillan.

استشهاد بنمط شيكاغو

Lovelock, Christopher H., و Charles B. Weinbergh. Marketing Challenges: Case and Services. 3rd ed. Hound mills: Macmillan, 1996.

MLA استشهاد

Lovelock, Christopher H., و Charles B. Weinbergh. Marketing Challenges: Case and Services. 3rd ed. Macmillan, 1996.