1915. Revision of the pocket gophers of the genus Thomomys. N. Amer. Fauna, 39:1-136.

1927. A biological survey of North Dakota. N. Amer. Fauna, 49: vi + 1-226 [this publication is dated 1926, but actually was published on January 8, 1927].

Baker, C. L.

1952. Geology of Harding County. Rept. South Dakota State Geol. Surv., 68:1-36 (mimeographed).

Brown, L. N.

1963. Maturational molts and seasonal molts in Peromyscus boylii. Amer. Midland Nat., 70:466-469.

Collins, H. H.

1918. Studies of normal moult and of artificially induced regeneration of pelage in Peromyscus. Jour. Exp. Zool., 27:73-99.

Goldman, E. A.

1944. Classification of wolves. Pp. 387-507, in The wolves of North America (S. P. Young and E. A. Goldman), Amer. Wildlife Inst., Washington, D.C., xx + 636 pp.