@book{2475,
	author = {Parker, Sybil P. and Publishing, McGraw-Hill.},
	title = {Mcgraw-Hill Encyclopedia of Science and Technology Vol. 1 to 20 /},
	publisher = {McGraw-Hill Companies,},
	year = {1997.},
	address = {[S.l.] :},
	edition = {8th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0079115047/chopaconline-20}
}