 | Trees Diseases and pests United States. | (3) |
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 | Eastern forest insects / Whiteford L. Baker. Baker, Whiteford Lee, 1903- 4n Washington, D.C. : U.S. Dept. of Agriculture, Forest Service, 1972. | |
| Diseases of forest and shade trees of the United States / by George H. Hepting. Hepting, George H. (George Henry), 1907- 4n Washington, D.C. : U.S. Dept. of Agriculture, Forest Service, 1971. | |
| Tree diseases of Eastern forests and farm woodlands / . Hepting, George H. (George Henry), 1907- 4n : U.S. Dept. of Agriculture, Forest Service, 1969. | |
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