TY  - BOOK
AU  - Townsend,Colin R.
TI  - The ecology of streams and rivers
T2  - The Institute of Biology's Studies in biology
SN  - 0-7131-2804-6
U1  - 574.52 TOW 
PY  - 1980///
CY  - London
PB  - Edward Arnold
N1  - Includes bibliographical references and index
ER  -