@book{104896,
	author = {Peña Valdivia, Cecilia Beatriz and Aguirre Rivera, Juan Rogelio},
	title = {El frijol silvestre :},
	publisher = {Colegio de Postgraduados,},
	year = {2012.},
	series = {Biblioteca básica de agricultura},
	address = {Montecillo, Texcoco :}
}