Papy and Papy, Frederique <br/><br/>
Modern Mathematics 
Volume 1 
 - London  Collier-MacMillan Limited  1968 
 - 459 
<br/><br/><label>Publisher. No.: </label> International Book House 
<br/><br/><label>Subjects--Personal Names: </label> Mathematics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics