Helvey, T. C <br/><br/>
Moon base  technical and psychological aspects 
T. C. Helvey 
 - New York  John F Rider Publishers  1960 
 - iv, 72p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Moon<br/>Morphology-Moon<br/>Surfaces(Celestial)
<br/><br/><label>Universal Decimal Class. No.: </label>523.34  / HEL