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Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1975.

Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1976.

Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1977.

Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1978.

Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1981.

Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1964.

Rio Piedras, P.R.: Institute of Tropical Forestry, 1976.

Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1966.

Tucson, Ariz.: Southwestern Forest and Range Experiment Station, 1951

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Washington, D.C. :For sale by the Supt. of Docs., U.S. G.P.O.,1980. | U.S. Department of Agr

Washington: Dept. of Agriculture, Forest Service, 1977.

Washington: for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976.