Berger, Fred R.- <br/><br/>
Studying deductive logic/ 
Fred R. Berger. 
 - Englewood Cliffs, N.J.  Prentice-Hall  1977 
 - 156 p. ;   23 cm. 
<br/><br/>p. 147- 149 
<br/><br/><label>ISBN: </label>0138588112 
<br/><br/><label>LCCN: </label>76-23234 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic