Berry, Brian Joe Lobley ,1934- Conkling, Edgar C. ( David Michael )  , 1935- <br/><br/>
The geography of economic systems 
Brian J. L. Berry, Edgar C. Conkling, D. Michael Ray. 
 -  Prentice-Hall Englewood Cliffs , N. J.  1976  ( c1976 ) 
 - ix, 529 p. :ill. ;29 cm. 
<br/><br/> Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0133512967 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography, Economic.--HF
<br/><br/><label>LC Class. No.: </label>HF1025.B455G4 1976