"E. J. Borowski and J. M. Borwein; with the assistance of J. F. Bowers","A. Robertson","and M. McQuillan" <br/><br/>
Dictionary of mathematics 

 -  London : Collins, 1989.  1989 
 - 656 
<br/><br/><label>ISBN: </label>9780004343471 
<br/><br/><label>Dewey Class. No.: </label>510  / 478