@book{43177,
	author = {Cortright, Edgar M.},
	title = {Apollo expeditions to the moon},
	publisher = {Scientific and Technical Information Office, National Aeronautics and Space Administration ; for sale by the Supt. of Docs., U.S. Govt. Print. Off.},
	year = {1975.},
	series = {NASA SP},
	address = {Washington},
	note = {Includes index.}
}