@book{83652,
	author = {Mendez Ramírez, Ignacio and Méndez Ramírez Ignacio},
	title = {El protocolo de investigación},
	publisher = { :Trillas},
	year = {,1990},
	address = {México},
	edition = {2a. edición.},
	note = {Reimpresión: 2014, 2016}
}