Morgan, Augustus De.  <br/><br/>
On the syllogism, and other logical writings / 
Augustus De Morgan, Peter Heath. 
 - London :  Routledge & Kegan Paul,   c1966. 
 - xxxi, 355 p. ;  20 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Syllogism.<br/>Logic.--Symbolic and mathematical. 
<br/><br/><label>Dewey Class. No.: </label>166  / MOO 1966