@book{35444,
	author = {Crawford, Harriet E. W.},
	title = {Sumer and the Sumerians /},
	publisher = {Cambridge University Press,},
	year = {2004.},
	address = {Cambridge, UK ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/cam041/2004045116.html}
}