Não informado. (1983). Business Marketing. Crain Communications.
Chicagoスタイル(17版)引用形式Não informado. Business Marketing. Chicago, Ill: Crain Communications, 1983.
MLA(8版)引用形式Não informado. Business Marketing. Crain Communications, 1983.
警告: この引用は必ずしも正確ではありません.