Watson, David F. <br/><br/>
Contouring: a guide to the analysis and display of spatial data: with programs on diskette 

 - Oxford  Pergamon Press  1992 
 - xviii,322p, 22cm  1disc 
 - Computer methods in the geosciences .
<br/><br/><label>ISBN: </label>0080402850 
<br/><br/><label>Dewey Class. No.: </label>526.981,  / D, wat