@book{91100,
	author = {Sánchez Hernández, César.},
	title = {incremento in vitro y caracterización de genotipos avanzados de calabaza (Cucurbita pepo L.) /},
	publisher = {El autor,},
	year = {2005.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/102635.pdf}
}