Biological integrity of a headwater steam: evidence of degradation, prospects of recovery
By: J. R. Karr and D. R. Dudley.
Contributors: Dudley, D. R
Publisher: s.n
Published: 1978
Place of publication: S.l
Number of pages: 25
Notes: In: Pages 3-25 in J. Lake and J. Morrison (eds). Environmental Impact of Land Use on Water Quality: Final Report on the Black Creek Project (Supplimentary Comments). US Environmental Protection Agency, Chicago.  EPA-905/9-77-007-D.

13