TY  - BOOK
AU  - Richards,John F.
TI  - The Unending frontier : an environmental history of the early modern world
SN  - 9780520246782
U1  - 304.2 
PY  - 2005///
CY  - Berkeley
PB  - University of California Press
KW  - Nature - Effects of human being
KW  - Human Ecology
ER  -