Unwin, David J. (David John), 1943- <br/><br/>
Introductory spatial analysis 
David Unwin 
 - London  Methuen  1981 
 - xii,212p ill maps 24cm cased 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0416721907 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maps<br/>Spatial analysis (Statistics)