Collingwood, Edward Folyle <br/><br/>
The Theory of cluster sets / 
Edward Folyle Collingwood and A J Lohwater 
 - Cambridge :  U P,  1966 
 - 211p. diagrs. 23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cluster set theory.
<br/><br/><label>Dewey Class. No.: </label>511.322  / COL