Krause, Eugene F.  <br/><br/>
Taxicab Geometry  An Adventure in Non-Euclidean Geometry 
Eugene F. Krause 
 - New York  Dover Publications  1987 
 - viii, 88 p. 
<br/><br/><label>ISBN: </label>9780486252025 
<br/><br/><label>Dewey Class. No.: </label>516.9  / KRA