• 25 Journals, Magazines, Newspapers
• 3 Books
• 1 Microforms

• 26 Forests and forestry
• 3 Forest health

• 6 United States. Forest Service. North Central Research Station
• 3 Woodall, Christopher
• 2 Butler, Brett J.
• 2 Crocker, Susan J., 1978-
• 2 Kurtz, Cassandra M.
• 2 McWilliams, William H.
• 2 Miles, Patrick D.
• 2 Morin, R. S.
• 2 Nelson, Mark D. (Research forester)
• 2 Riemann, Rachel
• 2 Smith, James E., 1956-
• 2 Westfall, James A.
• 1 Lister, Andrew J.
• 1 Lister, Tonya W.
• 1 Luppold, William G.
• 1 Piva, Ronald J.
• 1 Widmann, Richard H.

• 28 English

• 3 Illinois
• 2 Delaware
• 2 Indiana
• 2 Kansas
• 2 New York (State)
• 2 Ohio
• 1 Connecticut
• 1 Iowa
• 1 Maine
• 1 Massachusetts
• 1 Minnesota
• 1 Missouri
• 1 Nebraska
• 1 New Hampshire
• 1 New Jersey
• 1 North Dakota
• 1 Pennsylvania
• 1 Rhode Island
• 1 South Dakota
• 1 Vermont
• 1 West Virginia

• 26 Statistics
• 25 Periodicals

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