TY  - BOOK
AU  - De Blij Herm J
AU  -  Glassner Martin Ira
TI  - Systematic political geography
SN  - 0471635839
U1  - U5, K7;L3/TD3 
PY  - 1941///
CY  - New York
PB  - John Wiley        
N1  - Bibliography at the end of each chapter
ER  -