Cunningham, W. H. (1987). Marketing a managerial approach (2ª ed.). South-Western.
Chicago-čujuhus (17. p.)Cunningham, William H. Marketing a Managerial Approach. 2ª ed. South-Western, 1987.
MLA-čujuhus (9. p.)Cunningham, William H. Marketing a Managerial Approach. 2ª ed. South-Western, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.