@book{232403,
	author = {McClellan, James E. and Dorn, Harold, and ebrary, Inc.},
	title = {Science and technology in world history},
	publisher = {Johns Hopkins University Press,},
	year = {2006.},
	address = {Baltimore :},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10188460}
}