sponsored by Divisions S-5, S-6, A-1, and A-2 of the Soil Science Society of America and the American Society of Agronomy in Atlanta, Georgia, 29 Nov.-3 Dec. 1981 ; editorial committee, F.P. Miller ... [et al.]Soil Science Society of America : American Society of Agronomyc1984
prepared for the Subcommittee on Rural Development of the Committee on Agriculture and Forestry, United States Senate[Congressional Information Service][19--]