TY  - BOOK
AU  - Johnston,  R. J. 
TI  - Spatial structures : : introducing the study of spatial systems in human geography / 
U1  - 910.13013 JOH  
PY  - 1973///.
CY  - London : 
PB  - Methuen & co Ltd., 
KW  - General Geography
KW  - Human geography
KW  - Spatial systems
KW  - Human settlements -- Locational theory
N1  - Includes index.
ER  -