sponsored by the Research Council on Environmental Impact Analysis of the ASCE Technical Council on Research at the ASCE national convention in San Francisco, California, October 17-21, 1977 ; Charles G. Gunnerson and John M. Kalbermatten, editors
convener and editor, H. D. Tindall; Temperate zone fruits in the tropics and subtropics / convener and editor, F. G. Dennis; Symposium on Horticultural Economics in Developing Countries, Alemaya, Ethiopia, July 1989 / convener and editor R. von Alvensleben