@book{74843,
	author = {Barrera Guzmán, Lidia.},
	title = {Efectividad biológica de flazasulfuron en el cultivo de jitomate (Lycopersicon esculentum Mill) en Tlayacapan, Morelos},
	publisher = {El autor,},
	year = {1997},
	address = {Chapingo, Méx. :}
}