Kalish, Donald <br/><br/>
Logic  techniques of formal reasoning / 
Donald Kalish, Richard Montague 
 - New York :  Harcourt,  1964 
 - 350 p. ;  23 cm. 
<br/><br/>p. 341-345 
<br/><br/><label>ISBN: </label>0155511807 
<br/><br/><label>LCCN: </label>64-10046 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic