Interplanetary travel: a sternfeld 

 -  1957 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>58586 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>D6:48, J72              CS