TY  - BOOK
AU  - Krech, Shepard (ed), Mcneill, J.R.(ed) & Merchant, Carolyn (ed)
TI  - Encyclopedia of world environment history .-0-415-93733-7
SN  - 0-415-93733-7
U1  - R 301.303 E.W.E.H. 
PY  - 2004///
CY  - Routledge, New York
ER  -