Haslett, A.W. . <br/><br/>
Science News 33 /  Textual Documents 
A.W. Haslett. 
 - Ist ed / 
 - New York :  Penguin Books Ltd ,  1954. 
 - 127p ;  13cm. 
<br/><br/><label>Subjects--Index Terms: </label>Science News G- Mathematics T/G 
<br/><br/><label>Dewey Class. No.: </label>505  / Sc 57