@book{9400,
	author = {DeFrees, D. and Ames Research Center},
	title = {Exobiology in earth orbit},
	publisher = {National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division},
	year = {1989.},
	series = {NASA SP},
	address = {Washington, DC},
	note = {Shipping list no.: 90-292-P.}
}