The exploration of spece / 
a symposium on space Physics (April 29-30, 1959) ; edited by Robert Jastrow 
 - New York :  Machillan,  1960 
 - 160 p. ;  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 5.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronautics
<br/><br/><label>Dewey Class. No.: </label>629.4082