Gay,David <br/><br/>
Explorations in topology:  map coloring,surfaces and knots 
David Gay  
 - New York  Elsevier Academic  2007 
 - xii,339op. 
<br/><br/><label>Subjects--Index Terms: </label>Topology  Knot theory 
<br/><br/><label>Universal Decimal Class. No.: </label>515.12  / GAY