@book{87563,
	author = {Douglas, James Sholto.},
	title = {Hidroponia :},
	publisher = {El Ateneo,},
	year = {1997.},
	series = {La granja y la huerta},
	address = {Buenos Aires, :},
	edition = {7ed.},
	note = {Trad. de : Beginner's guide to hydroponics, 1972}
}