Hartsfield, Nora <br/><br/>
Pearls in graph theory 
Nora Hartsfield and Gerhard Ringel 
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 - Dover Publication, New York  1994 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Graph theory-- Mathematics
<br/><br/><label>Dewey Class. No.: </label>511.5  HAR-P