@book{74552,
	author = {Colorado Pérez, Humberto. and Jiménez Sánchez, Xicoténcatl.},
	title = {La producción y exportación de espárrago (Asparagus officinalis) mexicano},
	publisher = {El autor,},
	year = {1997.},
	address = {Chapingo, Méx. :}
}