@book{204165,
	author = {Pintrich, Paul R. and Schunk, Dale H.},
	title = {Motivación en contextos educativos : teoría, investigación y aplicaciones},
	publisher = {Pearson},
	year = {c2006.},
	address = {Madrid},
	edition = {2a ed.},
	note = {Translation of: Motivation in education. 2nd ed.}
}