@book{92641,
	author = {García Hernández, Raúl.},
	title = {Variabilidad morfológica de timbiriche (Bromelia hemisphaerica Lam.) en Tejupilco de Hidalgo, Estado de México},
	publisher = {El autor,},
	year = {2006.},
	address = {Chapingo, Méx. :}
}