@book{136908,
	author = {Oliveros, Angel},
	title = {Condiciones para un buen programa},
	year = {ene./abr. 1970},
	address = {Madrid},
	url = {http://www.mecd.gob.es/dctm/revista-de-educacion/1970-207/1970re207estudios04.pdf?documentId=0901e72b818356d2}
}