@book{89897,
	author = {Zalazar Marcial, Edgardo.},
	title = {Proyecto de lombricultura para el municipio de Catemaco, Veracruz /},
	publisher = {El autor,},
	year = {2005.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/101426.pdf}
}