Frye, R. W. (1973). Introduction to the marketing system. Comfield press, 1973.
シカゴスタイル引用形Frye, Robert W. Introduction to the Marketing System. Francisco: Comfield press, 1973, 1973.
MLA引用形式Frye, Robert W. Introduction to the Marketing System. Comfield press, 1973, 1973.
警告: この引用は必ずしも正確ではありません.