TY  - BOOK
AU  - Bramwell, Anna
TI  - Ecology in the 20th century : : a history / 
SN  - 0300045212
U1  - 577.09 22
PY  - 1989///
CY  - London : 
PB  - Yale University
KW  - Ecology--history
N1  - Includes bibliography and index
ER  -