Freshwater biology.

A Guide to study of fresh wster Biology James G. Needham 1962 Biology of freshwater pollution Mason, C. F. 1991 Biology of freshwater pollution Mason C F 1981 Comparative determination of lead and nickel in the blood and tissue samples of cancerous and healthy persons Shahzad, Muhammad 2006 Fresh Water Biology Edmondson, W T 1918 Fresh-water biology Edmondson, W. T. 1959 Freshwater biology Harmer, S F 2005 Freshwater biology Willoughby, L. G. 1976 Freshwater microscopy Garnett, William Jeremiah 1953 Life in inland waters Williams, W D 1983 Limnological methods Welch, Paul Smith 1948 Microscopic Fresh Water Life W, F J 2005 Pond life Ford, Richard L. E. [from old catalog] 1951 Primary productivity in aquatic environments Author not listed Year not listed Stream sanitation Phelps, Earle B. 1944 The biology of polluted waters Hynes, H. B. N. 1960 The ecology of running waters Hynes, H. B. N. 1970 Water technology Gray, N. F. 1999