1935. Alaska-Yukon caribou. U.S. Dept. Agric., No. Am. Fauna 54: 1-93, 10 pl., 13 fig., 3 maps.
1939. The Caribou. Description and distribution. In: Alfred Ely, H. E. Anthony, and R. R. M. Carpenter, North American big game: 239-246, 1 pl., 1 map. New York and London.
1941. Wildlife introductions in Alaska. Trans. Fifth No. Am. Wildlife Conference: 432-436.
Murray, Andrew.
1858. Contributions to the natural history of the Hudson’s Bay Company’s territories. Part 1.—Reindeer. Edinburgh New Philos. Jour. 7 (2): 189-210, 4 fig.
Natvig, L. Reinhardt.
1918. Beitrag zur Biologie der Dasselfliegen des Renntieres. Tromsø Mus. Aarshefter 38/39: 117-132, 1 pl., 5 fig.
Nelson, E. W.
1916. The larger North American mammals. Nat. Geog. Mag. 30 (5): 385-472, 33 pl., 24 fig.
Nourse, J. E.