Bonestell , Chesley . <br/><br/>
The Conquest of Space /  Textual Documents 
Chesley Bonestell & Willy Ley. 
 - 1st ed. / 
 - London :  Sidgwick & Jacjson ,  1950. 
 - 159p. :  ill ;  24cm . 
<br/><br/><label>Subjects--Index Terms: </label>Solar System Space Astronomy G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>523.4  / B 641 C