TY  - BOOK
AU  - Etherington,John R.
AU  - Armstrong W.
TI  - Environment and plant ecology
SN  - 0471246158
U1  - 581.5 
PY  - 1975///
CY  - London
PB  - John Wiley
KW  - Descriptive biology
KW  - plants
KW  - Plant ecology
N1  - Bibliography: p. 309-338
ER  -