Schumm George F <br/><br/>
A teaching companion to Lemmon's Beginning logic / 
George F. Schumm. 
 - Indianapolis :  Hackett,  1979. 
 - vii, 98 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>0915144654 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Propositional calculus<br/>Predicate calculus
<br/><br/><label>LC Class. No.: </label>QA9.3