Kalish, Donald.
Logic: techniques of formal reasoning /
Donald Kalish, Richard Montague 
. - New York : Harcourt, Brace & World, Inc.,  1964 
. - x, 350 p.  schem.  23 cm. 
<br/>К.: Бібліогр. : c. 341-345, Index 
<br/><label>  ISBN: </label>0-15-551180-7