@book{53493,
	author = {Laikin, Milton.},
	title = {Lens design /},
	publisher = {CRC Press,},
	year = {c2007},
	series = {Optical science and engineering ;},
	address = {Boca Raton, FL :},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0664/2006050460-d.html}
}