@book{111438,
	author = {Bairagi, Nisith K. and ebrary, Inc.},
	title = {Advanced trigonometric relations through Nbic functions},
	publisher = {New Age International,},
	year = {2012.},
	address = {New Delhi :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10594267}
}