@book{21740,
	author = {Maxwell, Joseph A.,},
	title = {Diseño de investigación cualitativa :},
	publisher = {Gedisa Editorial,},
	year = {2019.},
	series = {Herramientas universitarias},
	address = {Barcelona :},
	url = {https://elibro.net/ereader/politecnicointernacional/127783}
}