TY  - BOOK
AU  - Dowdeswell,W.H.
TI  - Ecology: principles and practice 
SN  - 0435602268 (paperback)
AV  - QH541.142 D69 
PY  - 1984///
CY  - London
PB  - Heinemann Educational
KW  - Ecology
KW  - Formulas
N1  - Includes index; Includes table
ER  -