Alperin, Roger C,  <br/><br/>
Arboreal group theory 
Roger C Alperin  
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 - Springer-Verlag, New York  1988 
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 - .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Groups-- Algebra-- Mathematics
<br/><br/><label>Dewey Class. No.: </label>512.2  ALP-A