Beckmann, Petr <br/><br/>
A history of  π (pi) / 
Petr Beckmann. 
 - New York:   St. Martin's Press,   1971.  
 - 200 p. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--History
<br/><br/><label>Dewey Class. No.: </label>510.9