Lutz Robert <br/><br/>
Nonstandard analysis    A practical guide with applications. 
Lutz Robert; Goze Michel 
 -  1981 
<br/><br/><label>Standard No.: </label>125568 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B31, M1