APA (7th ed.) Citation

United States. Forest Service & Williams, R. E. (1986). Armillaria root disease (Rev. Aug. 1986.). [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Forest Service and R. E. Williams. Armillaria Root Disease. Rev. Aug. 1986. [Washington, D.C.?] : U.S. Dept. of Agriculture, Forest Service: [publisher not identified], 1986.

MLA (9th ed.) Citation

United States. Forest Service and R. E. Williams. Armillaria Root Disease. Rev. Aug. 1986. [publisher not identified], 1986.