@book{20309,
	author = {O'Brien, Anthony Gordon.},
	title = {The ancient chronology of Thar :},
	publisher = {Oxford University Press,},
	year = {1996.},
	address = {Delhi :},
	note = {Maps on lining papers.},
	url = {http://www.loc.gov/catdir/enhancements/fy0606/96906243-d.html}
}