1. Least-Cost Use of Animal Waste in Agricultural Production;Araji;Idaho Agricultural Experiment Station Research Bulletin No. 118,1981
2. Farm manures: An overview of their role in agricultural environment;Azevedo,1974
3. Artificial Manures or the Conservation and Use of Organic Matter for Soil Improvement;Beaumont,1974
4. Bicarbonate-extractable phosphorus in fresh and composted dairy manure;Elias-Azar;Soil Science Society of America Journal,1980
5. Animal waste utilization on cropland and pastureland—A manual for evaluation agronomic and environmental effects;Gilbertson;USDA Utilization Research Report No. 6 and EPA-600/2-79-059,1979