Truran H,  1975. <br/><br/>
A practical Guide to Statistical Maps and Diagrams/ 

 - London,  Heinemann Education Books LTD,  1975. 
 - IV,58P.;  MAPS;  23CM. 
<br/><br/><label>ISBN: </label>0435357204 
<br/><br/><label>LC Class. No.: </label>GA109.8  / .T781975