TY  - BOOK
AU  - Van Valkenburg, Samuel
AU  - Erickson, Franklin C.
TI  - ELEMENTS OF POLITICAL GEOGRAPHY
U1  - 910 
PY  - 1940///
CY  - New Delhi
PB  - Prentice-Hall Of India
KW  - Geography
KW  - World Politics
KW  - Boundaries
ER  -