@book{42737,
	author = {E.U.A. Soil Conservation Service},
	title = {Drainage},
	publisher = {The Service,},
	year = {1959-},
	series = {National Engineering handbook section},
	address = {Washington :},
	note = {La biblioteca tiene: v.1 Principles of draninage.-- v.2 Drainage survey, investigations and reports.-- v.3 Subsurface drainage of irrigated land in arid and semi-arid areas.--v.4 Subsurface drainage in humid areas.--v.5 Tile systems and appurtenances.--}
}