1. Organic carbon;Allison,1965
2. A simple gas Chromatographic method for separation of gases in soil atmospheres;Blackmer,1974
3. Determination of nitrogen in soil by the Kjeldahl method;Bremner;J. agric. Sci., Camb.,1960
4. Isotope-ratio analysis of nitrogen in nitrogen-15 tracer investigations;Bremner,1965
5. Determination and isotope-ratio analysis of different forms of nitrogen in soils: 3. Exchangeable ammonium, nitrate, and nitrite by extraction-distillation methods;Bremner,1966