1. Standard Methods for the Examination of Water and Wastewater;American,1965
2. Release of Nitrogenous Compounds from Lake Sediments;Austin Elizabeth,1970
3. The Chemical Investigation of Recent Lake Sediments from Wisconsin Lakes and Their Interpretation;Bortleson,1970
4. Sources of elemental nitrogen in fermentation gases;Brezonik;Int. J. Air Wat. Pollut.,1966
5. On the biological significance of phosphate analysis: comparison of standard and new methods with a bioassay;Chamberlain;Limnol. Oceanogr.,1969