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Research on Guayule (Parthenium argentatum): 1942-1959
Hammond, Bayard L., (1965)
Experimental Tapping of Hevea Rubber Trees at Bayeux, Haiti 1924-25
Polhamus, Loren G., (1928)
Symposium on Impacts on Rural America of the Federal Water Pollution Control Act Amendments, P.L. 92-500
Christensen, Lee A., (1978)