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.
Παραπομπή σε μορφή Chicago (17η εκδ.)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.
Παραπομπή σε μορφή MLA (8th εκδ.)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.