@book{76627,
	author = {Córdova Avalos, Antonio. and Rogel Jayer, Macario Alvaro.},
	title = {Usos de la fauna silvestre en el Parque Nacional El Chico, Hidalgo},
	publisher = {El autor,},
	year = {1998.},
	address = {Chapingo, Méx. :}
}