@book{4307,
	author = {Martín, Ricardo J. M. and González, Zobeida L.},
	title = {Deserción, desgranamiento, retención, repitencia},
	publisher = {Kapelusz},
	year = {1983},
	address = {Buenos Aires},
	note = {Glosario p.117.- Bibliografía p. 120.}
}