Wrigley, Neil <br/><br/>
Categorical data analysis for geographers and environmental scientists / 
Neil Wrigley 
 - London :  Longman,  1985 
 - 392 p. ;  26cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0582301270 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography--Statistical methods<br/>Environmental protection--Statistical methods