Haslett, A.W.. <br/><br/>
Science News 32 /  Textual Documents 
A.W.Haslett. 
 - 1st ed. / 
 - New York :  Penguin Books Ltd ,  1954. 
 - 128p. :  ill ;  18cm . 
<br/><br/><label>Subjects--Index Terms: </label>Science News News-Science G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>505  / Ha 57 Sc