LONGMAN ANDREW. (2005). RATIONAL PROJECT MANAGER. JOHN WILEY & SONS.
Lua i Stíl Chicago (17ú heag.)LONGMAN ANDREW. RATIONAL PROJECT MANAGER. NEW JERSEY: JOHN WILEY & SONS, 2005.
Lua MLA (9ú heag.)LONGMAN ANDREW. RATIONAL PROJECT MANAGER. JOHN WILEY & SONS, 2005.
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