Johnstone, P. T. <br/><br/>
Topos theory / 
P. T. Johnstone. 
 - London ;  New York :  Academic Press,  1977. 
 - xxiii, 367 p. :  ill. ; 
<br/><br/> Includes indexes. 
<br/><br/><label>ISBN: </label>0123878500 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Toposes.
<br/><br/><label>Universal Decimal Class. No.: </label>515.12:512.628  / JOH