@book{20707,
	author = {Subrahmanyam, Sanjay.},
	title = {Penumbral visions :},
	publisher = {University of Michigan Press,},
	year = {2001.},
	address = {Ann Arbor:},
	url = {http://www.loc.gov/catdir/description/umich051/2001034777.html}
}