@book{39635,
	author = {Ortiz Torres, Emilio. and e-libro, Corp.},
	title = {La dialéctica en las investigaciones educativas},
	publisher = {Editorial Universitaria,},
	year = {2012.},
	address = {La Habana :},
	url = {https://elibro.net/ereader/politecnicointernacional/71540}
}