Nichols, Eugene D. <br/><br/>
Introduction to sets: A programmed unit 

 - America  Holt, Rinehart and Winston Inc  1962 
 - 253p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>517.52 NIC