@book{175806,
	author = {Williams, Arthur Bernard, and Taylor, Fred J.,},
	title = {Electronic filter design handbook /},
	publisher = {McGraw-Hill,},
	year = {2006.},
	address = {New York ;},
	edition = {4th ed.},
	note = {One CD-ROM in pocket attached to inside back cover.},
	url = {http://www.loc.gov/catdir/enhancements/fy0703/2006281128-b.html}
}