@book{123660,
	author = {National Research Council (U.S.).},
	title = {An astrobiology strategy for the exploration of Mars},
	publisher = {National Academies Press,},
	year = {c2007.},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10180644}
}