Frigenti, E., & Comninos, D. (2002). The practice of project management: A guide to the business-focused approach. Kogan Page.
Lua i Stíl Chicago (17ú heag.)Frigenti, Enzo, agus Dennis Comninos. The Practice of Project Management: A Guide to the Business-focused Approach. London: Kogan Page, 2002.
Lua MLA (9ú heag.)Frigenti, Enzo, agus Dennis Comninos. The Practice of Project Management: A Guide to the Business-focused Approach. Kogan Page, 2002.
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