@book{243568,
	author = {Griffin, Michael D. and United States},
	title = {Leadership in space},
	publisher = {National Aeronautics and Space Administration Headquarters},
	year = {2008.},
	address = {Washington D.C.},
	note = {"NASA SP-2008-564."},
	url = {http://www.loc.gov/catdir/toc/ecip0827/2008039636.html}
}