CYRUS M. McKELL, Dean, School of Natural Resources, Weber State College, Odgen, Utah, USA, Chairman
LESLIE A. BROWNRIGG, AMARU IV Cooperative, Washington, D.C., USA
WILBUR F. CURRIER, Albuquerque, New Mexico, USA
PETER F. FFOLLIOTT, School of Renewable Natural Resources, University of Arizona, Tucson, Arizona, USA
JERE L. GILLES, Department of Rural Sociology, University of Missouri, Columbia, Missouri, USA
CARLTON H. HERBEL, Agricultural Research Service, U.S. Department of Agriculture, Las Cruces, New Mexico, USA
CHARLES F. HUTCHINSON, Office of Arid Lands Studies, University of Arizona, Tucson, Arizona, USA
WILLIS G. KEARL, Department of Agricultural Economics, University of Wyoming, Laramie, Wyoming, USA
WILLIAM C. KRUEGER, Department of Rangeland Resources, Oregon State University, Corvallis, Oregon, USA
H. N. LE HOUÉROU, Centre d'Etudes Phytosociologiques et Ecologiques Louis-Emberger, Montpelier, France