@book{51589,
	author = {Rojas Soriano, Raúl.},
	title = {El proceso de la investigación científica},
	publisher = {Trillas,},
	year = {1983.},
	address = {México, D. F. :},
	edition = {3 ed.},
	note = {c.4 sust. por c.1 de la 4 ed.}
}