University of Minnesota. School of Forestry. (1968). Minnesota forestry research notes. School of Forestry, University of Minnesota, cooperating with the Division of Forestry, Minnesota Conservation Dept. and the Forest Industries of Minnesota.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)University of Minnesota. School of Forestry. Minnesota Forestry Research Notes. St. Paul, MN: School of Forestry, University of Minnesota, cooperating with the Division of Forestry, Minnesota Conservation Dept. and the Forest Industries of Minnesota, 1968.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)University of Minnesota. School of Forestry. Minnesota Forestry Research Notes. School of Forestry, University of Minnesota, cooperating with the Division of Forestry, Minnesota Conservation Dept. and the Forest Industries of Minnesota, 1968.