Vaihinger H <br/><br/>
Philosophy of 'as if' 
Vaihinger H; Ogden C K 
 - London  Routledge and Kegan Paul      1924 
 - xlviii,368p.  cm. 
<br/><br/><label>Standard No.: </label>97420 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R3xM52, F4