Hofstradter, Douglas R. <br/><br/>
Metamagical themas :  questing for the essence of mind and pattern / 
by Douglas R. Hofstadter. 
 - New York, N.Y. :  Basic Books,  1985. 
 - xxviii, 852 p. 
<br/><br/><label>ISBN: </label>0465045405 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Artificial intelligence.<br/>Intellect.<br/>Science--Philosophy.<br/>Metamathematics.<br/>Self (Philosophy).<br/>Amusements.