TY  - BOOK
AU  - Brown, Alison Leadley.
TI  - Ecology of fresh water
SN  - 435615378.
U1  - 574.5 
PY  - 1971///
CY  - London
PB  - Heineman Educational
KW  - Fresh-water ecology
N1  - Index; Includes bibliographical references (p [119]-121.)
ER  -