TY  - BOOK
AU  - Semple,Ellen Churchill
AU  - Ratzel,Friedrich,1844-1904Anthropogeographic
TI  - Influences of geographic environment on the basis of Ratzel's system of anthropo-geography
PY  - 1968///
CY  - New York
PB  - Russell & Russell
KW  - Anthropo
KW  - geography
KW  - Man
KW  - Influence of environment
ER  -