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出版National Aeronautics and Space Administration, 1968
URLhttp://books.google.com.hk/books?id=tVwNHklBd_0C&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN
註釋"The National Aeronautics and Space Administration's space flight team is based at Manned Spacecraft Center in Houston, Texas. Since the inception of the manned space flight program 66 astronauts have been selected. Of this number 55 are still participating in the program on a full-time basis. The seven original astronauts were named in April 1959. Additional astronauts and scientist-astronauts have been added from time to time."--Title page verso.