Marson , S. <br/><br/>
Problem solving with maps 

 - Cambridge   Cambridge University   1992 
<br/><br/><label>ISBN: </label>0521428432 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Map reading
<br/><br/><label>Dewey Class. No.: </label>912.014  / M16