@book{6462,
	author = {Arroyo Vargas, Zeferino. and Castillo Borda, José de Jesús.},
	title = {Evaluación de parámetros agrotécnicos fundamentales de un aspersor},
	publisher = {El autor,},
	year = {1993},
	address = {Chapingo, Méx. :},
	note = {62-103}
}