Forest distribution in the northern Rocky Mountains Kirkwood, J. E. (Joseph Edward), 1872-1928 creator text book Missoula, Mont State University 1922 1922
print
ENG Bulletin no. 247. Forests and forestry Montana Rocky Mountains SD144.M9 K5 University of Montana studies, no. 2 https://www.biodiversitylibrary.org/bibliography/55226 3492394 23027341 10.5962/bhl.title.55226 DLC