Wysocki, R. K. (2012). Effective project management: Traditional, agile, extreme (6th ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Wysocki, Robert K. Effective Project Management: Traditional, Agile, Extreme. 6th ed. Indianapolis, IN: Wiley, 2012.
Lua MLA (9ú heag.)Wysocki, Robert K. Effective Project Management: Traditional, Agile, Extreme. 6th ed. Wiley, 2012.
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