• Reclaiming Sewage Effluent

      Wilson, L. G.; Lehman, G. S.; Water Resources Research Center; Water Resources Research Center (College of Agriculture, University of Arizona (Tucson, AZ), 1967)
    • Still Opportunities

      Myers, Harold E.; College of Agriculture (College of Agriculture, University of Arizona (Tucson, AZ), 1967)
    • Virus Diseases of Lettuce in Arizona

      Nelson, M. R.; Davison, A. D.; Department of Plant Pathology; Department of Plant Pathology (College of Agriculture, University of Arizona (Tucson, AZ), 1967)