- Creator:
- Hurd, Cuthbert Corwin, 1911-
- Contributor:
- Stern, Nancy B.
- Created:
- 1981-01-20
- Contributed By:
- University of Minnesota Libraries, Charles Babbage Institute.
- Last Updated:
- 2017-11-17
- Creator:
- Vincent, Richard, 1930-
- Contributor:
- Solomonson, Craig
- Created:
- 1983-03-08
- Contributed By:
- University of Minnesota Libraries, Charles Babbage Institute.
- Last Updated:
- 2017-11-17