Gaya APA

Understanding business / William G. Nickels ; James M. McHugh ; Susan M. McHugh. (2002). New York, NY: McGraw-Hill/Irwin, c.

Gaya MLA

Understanding business / William G. Nickels ; James M. McHugh ; Susan M. McHugh. 6th ed.. New York, NY: McGraw-Hill/Irwin, c, 2002. Buku Wajib.