Archie, . <br/><br/>
Science News 48 /  Textual Documents 
Archie & Nan Clow. 
 - Ist ed / 
 - New York :  Penguin Books Ltd ,  1958. 
 - 136p ;  13cm. 
<br/><br/><label>Subjects--Index Terms: </label>Science News T/G- Mathematics 
<br/><br/><label>Dewey Class. No.: </label>505  / Sc 57