NASA technical note TN (series). D-2999. Lunar landing and site selection study [with list of references]; by James L. Lewis and Charles D. Wheelwright.
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Lunar landing and site selection study [with list of references]; by James L. Lewis and Charles D. Wheelwright.
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NASA technical note TN (series). D-2999. Lunar landing and site selection study [with list of references]; by James L. Lewis and Charles D. Wheelwright.