TY  - BOOK
AU  - Downes,Barbara J.
TI  - Monitoring ecological impacts: concepts and practice in flowing waters 
SN  - 0521771579 (hardback)
AV  - QH96.8.B5 M65 2002
U1  - 577.6/4/0287 21
PY  - 2002///
CY  - Cambridge, UK, New York, NY, USA
PB  - Cambridge University Press
KW  - Water quality biological assessment
KW  - Stream ecology
N1  - Includes bibliographical references (p. 392-420)
UR  - http://www.loc.gov/catdir/description/cam022/2001043778.html
UR  - http://www.loc.gov/catdir/toc/cam026/2001043778.html
UR  - http://www.e-streams.com/es0512/es0512_2198.html
UR  - http://www.loc.gov/catdir/enhancements/fy0731/2001043778-b.html
ER  -