WOLFE JOSEPH. (2003). GLOBAL BUSINESS GAME-C. SOUTH-WESTERN COLLEGE PUBLISHING CO.
Lua i Stíl Chicago (17ú heag.)WOLFE JOSEPH. GLOBAL BUSINESS GAME-C. AUSTRALIA: SOUTH-WESTERN COLLEGE PUBLISHING CO, 2003.
Lua MLA (9ú heag.)WOLFE JOSEPH. GLOBAL BUSINESS GAME-C. SOUTH-WESTERN COLLEGE PUBLISHING CO, 2003.
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