@book{14771,
	author = {Hernández Xolocotzi, Efraím.},
	title = {Biología agrícola :},
	publisher = {CECSA,},
	year = {1985.},
	series = {Los campos de la biología},
	address = {México :},
	url = {http://10.13.5.2/tesis/x15810.pdf}
}