@book{30700,
	author = {National Farm Youth Foundation. Chicago, Ill.},
	title = {Farm engineering and management},
	publisher = {La Salle Extension University,},
	year = {1941},
	series = {Engineering management practical},
	address = {Chicago, Ill. :},
	note = {La biblioteca tiene : v.1 The business of farming.--v.3 Soiland crop management.--v.4 Profitable management of farm operations.--v.5 Handling labor on the farm.--v.6 Profitable use of moderm farm machinery}
}