by Kirk, George L., Pray, Leon L., Loring, J. Alden, Warren, Edward R., Anthony, A. W., U. S. Department of Agriculture Press Service, Hartley H. T. Jackson, Chas. T. Vorhies, Skinner, M. P., Geo. Bird Grinnell, Howell, A. Brazier
Published in Journal of mammalogy (01.05.1921)

by Kirk, George L., Pray, Leon L., Loring, J. Alden, Warren, Edward R., Anthony, A. W., Jackson, Hartley H. T., Vorhies, Chas. T., Skinner, M. P., Grinnell, Geo. Bird, Howell, A. Brazier
Published in Journal of mammalogy (01.05.1921)