APA استشهاد

Cunningham, I. C., & Cunningham, W. H. (1981). Marketing: A managerial approach. South- Western Publishing.

استشهاد بنمط شيكاغو

Cunningham, Isabeller C., و William H. Cunningham. Marketing: A Managerial Approach. Chicago: South- Western Publishing, 1981.

MLA استشهاد

Cunningham, Isabeller C., و William H. Cunningham. Marketing: A Managerial Approach. South- Western Publishing, 1981.