Exner, Robert M. <br/><br/>
Logic in elementary mathematics 
[by] Robert M. Exner [and] Myron F. Rosskopf. 
 - New York  McGraw-Hill  1959. 
 - 274 p.  illus.  24 cm. 
<br/><br/><label>LCCN: </label>58013865 /L 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Philosophy.<br/>Logic, Symbolic and mathematical
<br/><br/><label>LC Class. No.: </label>QA9  / .E96 
<br/><br/><label>Dewey Class. No.: </label>510.1