Blyth T S <br/><br/>
Sets and mappings 

 - London  Chapman and Hall         1986 
 - 120p.  cm. 
<br/><br/><label>Standard No.: </label>40211 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Combination<br/>Permutation
<br/><br/><label>Dewey Class. No.: </label>B217, M6