@book{88995,
	author = {Solórzano Vega, Esteban and Manjarrez Martínez, Ma. de Jesús.},
	title = {Fijación biológica de nitrógeno :},
	publisher = {UACH. Departamento de Fitotécnia,},
	year = {2001.},
	series = {Temas didácticos},
	address = {Chapingo, Méx. :},
	edition = {2ed. corr. y aum.}
}