@book{7936,
	author = {Lockyer, Keith. and Gordon, James.},
	title = {Project management and project network techniques /},
	publisher = {Prentice Hall,},
	year = {2005.},
	address = {Harlow, England :},
	edition = {7th  ed.},
	note = {7th ed. of Critical path analysis and other project network techniques.}
}