@book{4231,
	author = {México. Subsecretaría de Desarrollo y Fomento Agropecuario y Forestal},
	title = {Manual del productor forestal},
	publisher = {La Subsecretaría,},
	year = {1991},
	address = {Huayacocotla, Ver. :},
	note = {D53-68}
}