Johnston, R.J. <br/><br/>
Spatial structures: introducing the study of spatial systems in human geography / 
R.J. Johnston 
 - London :  Methuen,  1973 
 - x, 137p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0416766501 0416766609 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography<br/>Spatial systems<br/>Human geography
<br/><br/><label>Dewey Class. No.: </label>910  / JOH