Luxemburg W.A.J. <br/><br/>
Contributions to non-standard analysis 
by W.A.J.Luxemburg 
 - London  north holand publishing company  1972 
 - vi,289p. 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>517.5  / LUX/C