Zaval, L. K., & Wagner, T. A. (2011). Project manager street smarts: A real world guide to PMP skills (2nd ed.). Wiley.
Dyfyniad Arddull ChicagoZaval, Linda Kretz, and Terri A. Wagner. Project Manager Street Smarts: A Real World Guide to PMP Skills. 2nd ed. Indianapolis, Ind.: Wiley, 2011.
Dyfyniad MLAZaval, Linda Kretz, and Terri A. Wagner. Project Manager Street Smarts: A Real World Guide to PMP Skills. 2nd ed. Wiley, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.