Wilson, Robin <br/><br/>
Four colors suffice :   how the map problem was solved / 
Robin Wilson 
 - United Kingdom :  Princeton University Press,  2014 
 - xv,199p. ; 24cm. 
<br/><br/><label>ISBN: </label>9780691158228 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Four--color problem<br/>Four--color problem--History<br/>Mathematical recreations--History<br/>Proof theory--History.
<br/><br/><label>Dewey Class. No.: </label>511.56  / WIL