Sally, Judith D.and Sally, Paul J. <br/><br/>
Roots to research; a vertical development of mathematical problems   

 - Providence  American Mathematical Society  2007 
 - xiii,338p. Bibl. Index 
 - .
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<br/><br/><label>ISBN: </label>9780821887257 
<br/><br/><label>Dewey Class. No.: </label>510.9  / Sa169.VD