Mycorrhizae; : proceedings. [electronic resource] . — Washington, : U.S. Forest Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,, 1971.. — v, 255 p. : illus. 24 cm. — (U.S. Dept. of Agriculture. Misc. publication 1189). - Miscellaneous publication (United States. Dept. of Agriculture) ; no. 1189. .
Co-chairmen: Edward Hacskaylo and J. W. Gerdemann. "Jointly sponsored by the University of Illinois and the U.S. Department of Agriculture Forest Service."