@book{11123,
	author = {Somasundaram, R.M.},
	title = {Discrete Mathematical Structures /},
	publisher = {Prentice-Hall of India Pvt.Ltd,},
	year = {2004.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8120322010/chopaconline-20}
}