Cunningham, W. H., & Cunningham, I. C. M. (1981). Marketing, a managerial approach. South-Western Pub. Co..
Cita Chicago (17th ed.)Cunningham, William Hughes, i Isabella C. M. Cunningham. Marketing, a Managerial Approach. Cincinnati: South-Western Pub. Co., 1981.
Cita MLA (8th ed.)Cunningham, William Hughes, i Isabella C. M. Cunningham. Marketing, a Managerial Approach. South-Western Pub. Co., 1981.
Atenció: Aquestes cites poden no estar 100% correctes.