@book{11079,
	author = {Lerma González, Hector Daniel and Gutiérrez M., Adriana },
	title = {Metodología de la investigación :},
	publisher = {Ecoe,},
	year = {2009.},
	series = {Educación y pedagogía},
	address = {Bogotá :},
	edition = {4a ed.}
}