Sanford, David H <br/><br/>
If P, then Q : conditionals and the foundations of reasoning 
David H. Sanford 
 - 2nd ed 
 - New York  Routledge  2003 
 - xv, 275 p. : ill. ; 24 cm 
<br/><br/> Includes Index 
<br/><br/><label>ISBN: </label>9780415283687 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conditionals (Logic)
<br/><br/><label>Dewey Class. No.: </label>153.43 SAN