Nickels, W. G. (2002). Understanding business [Đĩa CD-ROM]. Boston, Mass.: McGraw-Hill.
Trích dẫn kiểu ChicagoNickels, William G. Understanding Business [Đĩa CD-ROM]. Boston, Mass.: McGraw-Hill, 2002.
Deismireacht MLANickels, William G. Understanding Business [Đĩa CD-ROM]. Boston, Mass.: McGraw-Hill, 2002.
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