- 1975 to 19761
- 1977 to 19791
- 1980 to 19813
- 1982 to 19841
- 1985 to 19862
- 1987 to 19892
- 1990 to 19910
- 1992 to 19942
- 1995 to 19960
- 1997 to 19981
The preservation of the Duke University Libraries Digital Collections and the Duke Digital Repository programs are supported in part by the Lowell and Eileen Aptman Digital Preservation Fund