@book{15350,
	author = {Polit, Denise F., and Féher de la Torre, Guillermina,},
	title = {Investigación científica en ciencias de la salud /},
	publisher = {McGraw-Hill Interamericana ;},
	year = {2000.},
	address = {México :},
	edition = {Sexta edición.},
	note = {Trad. de: Nursing research principles and methods.}
}