TY  - BOOK
AU  - Atwater, Mary
TI  - Changes in Ecosystems
SN  - 0022742883
U1  - GSL Cir. 500 At93 1993 
PY  - 1993///
CY  - U.S.A
PB  - Macmillan/ McGraw-Hill Company
N1  - Index
ER  -