- document
- Hoffman, Russell H. (author) report 1974
- document
- Hoffman, Dan (author) report 1972
- document
- Hoffman, Dan (author) report 1969
- document
- Hoffman, Dan (author) report 1969
- document
- Hoffman, Dan (author) report 1968
- document
- Hoffman, Dan (author) report 1966
- document
- Hoffman, C.W. (author) report 1960