TY  - BOOK
AU  - Johnston,R.J.(Ronald John)
TI  - Spatial structures: introducing the study of spatial systems in human geography
SN  - 0416766501
PY  - 1973///
CY  - London
PB  - Methuen
KW  - Human geography
KW  - Spatial systems
N1  - Bibliography: p. 114-126
ER  -