TY  - BOOK
AU  - Hewitt, Kenneth.
AU  - Hare, F. Kenneth.
AU  - Association of American Geographers.
TI  - Man and environment: conceptual frameworks 
PY  - 1973///
CY  - Washington, D.C.
PB  - Association of American Geographers
KW  - Human ecology
KW  - Human geography
ER  -