Pippenger, Nicholas. <br/><br/>
Theories of computability / 
Nicholas Pippenger. 
 - Cambridge :  Cambridge University Press,  1997. 
 - ix, 251 p. ;  24 cm. 
<br/><br/> Includes indexes. 
<br/><br/>Includes bibliographical references : p. 234-242. 
<br/><br/><label>ISBN: </label>0521553806 (cased) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine theory.