@book{539,
	author = {Mehta, V. K.},
	title = {Principles of electronics /},
	publisher = {S Chand & Co Ltd,},
	year = {2005.},
	address = {[S.l.] :},
	edition = {7th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/8121924502/chopaconline-20}
}