@book{9463,
	author = {Singh, L. P.},
	title = {Digital protection :},
	publisher = {*Halsted Press,},
	year = {1995.},
	address = {[S.l.] :},
	edition = {1st ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0470234369/chopaconline-20}
}