1. Lake geochemistry—a low sample density technique for reconnaissance geochemical exploration and mapping of the Canadian Shield;Allan,1972
2. Reconnaisance geochemistry using lake sediments of a 36,000-square-mile area of the northwestern Canadian Shield;Allan;Geological Survey of Canada, paper 72-50,1973
3. Sulfur pollution and the aquatic ecosystem;Almer,1978
4. Long-term changes in basic water chemistry in some Swedish lake regions;Andersson,1980
5. Acidification of lakes in Canada by acid precipitation and the resulting effects of fishes;Beamish;Wat. Air Soil Pollut.,1976