@book{69152,
	author = {Castrodeza, Carlos.  },
	title = {Razón biológica :},
	publisher = {Minerva Ediciones,},
	year = {1999.},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/17466/}
}