Gido, J., & Clements, J. P. (2012). Successful project management (5th ed.). South-Western.
Lua i Stíl Chicago (17ú heag.)Gido, Jack, agus James P. Clements. Successful Project Management. 5th ed. Mason, OH: South-Western, 2012.
Lua MLA (9ú heag.)Gido, Jack, agus James P. Clements. Successful Project Management. 5th ed. South-Western, 2012.
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