TY  - BOOK
AU  - Richards John F
TI  - Unending frontier :  A environmental history of the   
SN  - 0520230752
U1  - U475:(G:5).1.K, P3 
PY  - 2003///
CY  - Berkeley
PB  - University of Calofornia Press       
KW  - Human Geography
N1  - California World History Library
ER  -