1969. The black-footed ferret in South Dakota. South Dakota Dept. Game,
Fish and Parks, Pierre, 37 pp.
HOFFMANN, R. S., and J. K. JONES, JR.
1970. Influence of late-glacial and post-glacial events on the
distribution of Recent mammals on the Northern Great Plains. Pp.
355-394, _in_ Pleistocene and Recent environments of the Central Great
Plains (W. Dort, Jr., and J. K. Jones, Jr., eds.), Univ. Press of
Kansas, Lawrence, xii + 433 pp.