organized by the International Association of Biological Standardization and the World Health Organization, held at Palexpo, Geneva, Switzerland, 29. Nov.-1. Dec. 1983
sponsored by Division S-5, "Soil Genesis, Morphology, and Classification," of the Soil Science Society of America, 4 Dec. 1985, in Chicago, IL ; editors, W.U. Reybold and G.W. Petersen
sponsored by Division S-4, S-2, S-3, and S-8 of the Soil Science Society of America in Chicago, IL, 3 Dec. 1985 ; organizing committee, R.F. Follett ... [et al.]
sponsored by Divisions S-5 and S-6 of the Soil Science Society of America in Anaheim, Calif., 28 Nov.-3 Dec. 1982 ; editorial committee, J.D. Nichols, P.L. Brown, W.J. Grant ...
sponsored by the Division of Agricultural and Food Chemistry at the First Chemical Congress of the North American Continent, Mexico City, Mexico, Dec. 3-4, 1975 ; Robert E. Feeney and John R. Whitaker, editors
