Long-term trends in the relative abundance of crayfish from acid sensitive, softwater lakes in South Central Ontario
Subtitle: a data summary for the first five years, 1988-1992
By: report prepared by S.M. David, K.M. Somers and R.A. Reid.
Publisher: Ontario, Ministry of Environment and Energy]
Published: 1994
Place of publication: [Toronto?
Language: eng
Number of pages: 56