Keene, G. B. <br/><br/>
Abstract sets and finite ordinals :  an introduction to the study of set theory / 
G.B. Keene. 
 - London :  Pergamon Press,  c1961. 
 - x,106 p. :  ill. ;  22 cm. 
<br/><br/> Originally published: Oxford ; New York : Pergamon Press, 1961. 
<br/><br/>Includes bibliographical references (p. 103) and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Set theory.<br/>Logic, Symbolic and mathematical.
<br/><br/><label>Dewey Class. No.: </label>511.322  / KEA 1961