@book{50998,
	author = {Cardelli, Jorge. and Duhalde, Miguel. and e-libro, Corp.},
	title = {Didactica de la investigacion},
	publisher = {Mino y Davila,},
	year = {2002.},
	address = {Buenos Aires  :},
	url = {https://elibro.net/ereader/politecnicointernacional/33090}
}