Brown, G Spencer <br/><br/>
Laws of Form 
/ by G Spencer Brown 
 - London:  George Allen and Unwin Ltd,  1969. 
 - xx, 142p.; 
<br/><br/><label>ISBN: </label>045100284 
<br/><br/><label>Dewey Class. No.: </label>512.87  / BRO/L