Annual meetings of American Society of Agronomy and Soil Science Society of America Detroit, M., American Society of Agronomy, Soil Science Society of America, Kral, D. M., Unger, P. W., Van Doren, D. M., . . . Skidmore, E. L. (1982). Predicting tillage effects on soil physical properties and processes: Proceedings of a symposium. Volume 44. Madison, Wisconsin: American Society of Agronomy ; Soil Science Society of America.

Annual meetings of American Society of Agronomy and Soil Science Society of America Detroit, Michigan), American Society of Agronomy, Soil Science Society of America, David M. Kral, P. W. Unger, D. M. Van Doren, F. D. Whisler, and E. L. Skidmore. Predicting Tillage Effects On Soil Physical Properties and Processes: Proceedings of a Symposium. Volume 44. Madison, Wisconsin: American Society of Agronomy ; Soil Science Society of America, 1982.

Annual meetings of American Society of Agronomy and Soil Science Society of America Detroit, Michigan), et al. Predicting Tillage Effects On Soil Physical Properties and Processes: Proceedings of a Symposium. Volume 44. Madison, Wisconsin: American Society of Agronomy ; Soil Science Society of America, 1982.