Sullivan, Walter <br/><br/>
Assault on the unknown : the international  geophysical year 
<label>/ by </label> Sullivan, Walter 
 - New York  McGraw-Hill  1961 
 - xiv,460p.  ill.  22 cm. 
<br/><br/>SR 
<br/><br/><label>Dewey Class. No.: </label>551  / S