TY  - BOOK
AU  - Valkenburg, Samuel Van
TI  - Elements of Political Geography
U1  - 320.9 
PY  - 1963///
CY  - New Delhi
PB  - Prentice-Hall of India Pvt. Ltd.
KW  - Political science
KW  - Social sciences
KW  - Boundries
KW  - Political geography
ER  -