Bailey, V. 1923: [Mitchell, J. D.] Journ. Mammology 4 (1), S. 48-49
Geiser, S. W. 1937: Naturalists of the frontiers. Dallas, pp. 329
Howard, L. O. 1922: [Mitchell, J. D.] Mo Let. Bur. Ent. Dept. Agr. 94, S. 1