Não informado. (1991). Business & the contemporary world. Walter de Gruyter.
Chicagoスタイル(17版)引用形式Não informado. Business & the Contemporary World. Hawthorne, NY: Walter de Gruyter, 1991.
MLA(8版)引用形式Não informado. Business & the Contemporary World. Walter de Gruyter, 1991.
警告: この引用は必ずしも正確ではありません.