F. Bryan Clark, technical editor, Jay G. Hutchinson, editor ; a cooperative project by the USDA Forest Service, Northeastern Area, State and Private Forestry, Northeastern Forest Experiment Station, North Central Forest Experiment Station, Sourthern Forest Experiment Station
St. Paul, Minn. : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station ; Washington, D.C. : For sale by the Supt. of Docs., U.S. G.P.O., 1989-