@book{12394,
	author = {Khanna, V K.},
	title = {Lattices and boolean algebra :},
	publisher = {Vikas Publication House Pvt Ltd,},
	year = {2004.},
	address = {[S.l.] :},
	note = {Import.},
	url = {http://www.amazon.com/exec/obidos/ASIN/8125916539/chopaconline-20}
}