Roethel, Louis F <br/><br/>
Logic, sets and numbers 

 - California:  Wadsworth Publishing Company  1972 
 - (x) 293p. : ill 
<br/><br/><label>ISBN: </label>0534000940 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS--STUDY AND TEACHING
<br/><br/><label>LC Class. No.: </label>QA 39.2 Roe