@book{99742,
	author = {Ortega Saldaña, Dulce Avy. and Trujillo Cardenas, Esthela},
	title = {Estudio de prefactibilidad técnico - financiera del proyecto :},
	publisher = {El autor,},
	year = {2010.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/111400.pdf}
}