por International Conference on Crop Productivity - Research Imperatives (1975 Harbor Springs, Mich.) | Brown, Anthony William Aldridge | Charles F. Kettering Foundation | Michigan State University Agricultural Experiment Station.
por Evans, L. T.
por International Conference on Stress Physiology in Crop Plants Boyce Thompson Institute for Plant Research, 1977 | Mussell, Harry | Staples, Richard C | Boyce Thompson Institute for Plant Research | Rockefeller Foundation.
por Gupta, U. S.
por Martin, John H. (John Holmes), 1893- | Leonard, Warren H [Autor] | Stamp, David Lee [Autor].
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