@book{100558,
	author = {Barrera Ramírez, Cesar Emmanuel. and Álvarez Moctezuma, José Guadalupe},
	title = {Estudio cariológico de (Pinus teocote) Schiede ex Schlechtendal & Chamisso},
	publisher = {El autor,},
	year = {2011.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/112218.pdf}
}