TY  - BOOK
AU  - Johnston R J
TI  - Political electoral and spatial systems:  An essays   
T2  - Contemporary problems in geography
SN  - 0198740719
U1  - U5.1.N7, L9 
PY  - 1979///
CY  - Oxford
PB  - Claremdon Press         
KW  - Political Geography
N1  - Bib p. 199-217
ER  -