@book{55074,
	author = {Gray, Clifford F., and Larson, Erik W. 1952- ,},
	title = {Administración de proyectos /},
	publisher = {McGraw-Hill,},
	year = {2009.},
	series = {Educación},
	address = {México :},
	edition = {Cuarta edición.},
	note = {Traducciòn de: Project management, the managerial process, 4th ed.}
}