Gray,Clifford F. (2014). Project management: The managerial process (6th ed.). Mc Graw Hill Education(india).
Dyfyniad Arddull ChicagoGray,Clifford F. Project Management: The Managerial Process. 6th ed. New Delhi: Mc Graw Hill Education(india), 2014.
Dyfyniad MLAGray,Clifford F. Project Management: The Managerial Process. 6th ed. Mc Graw Hill Education(india), 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.