TY  - BOOK
AU  - Calhoun John B Ed.
TI  - Environment and population :  Problems of adaptation   
U1  - U45:(G:55), M3 
PY  - 1983///
CY  - New York
PB  - Praeger Publishers U S A     
KW  - Rural Geography
N1  - Bib p. 359-98
ER  -