Nolt, John 1950-.
Informal logic: possible worlds and imagination /
John Eric Nolt 
. - New York : McGraw-Hill Book Company,  1984 
. - xiii, 429 p.  tab., schem.  24 cm. 
<br/>К.: Бібліогр. : c. 354-355, Index 
<br/><label>  ISBN: </label>0-07-046861-3