Cunningham, W. H. (1987). Marketing a managerial approach (2ª ed.). South-Western.
Chicagoスタイル(17版)引用形式Cunningham, William H. Marketing a Managerial Approach. 2ª ed. South-Western, 1987.
MLA(9版)引用形式Cunningham, William H. Marketing a Managerial Approach. 2ª ed. South-Western, 1987.
警告: この引用は必ずしも正確ではありません.