- 1975 to 19766
- 1977 to 19793
- 1980 to 19810
- 1982 to 19840
- 1985 to 19860
- 1987 to 19897
- 1990 to 19911
- 1992 to 19941
- 1995 to 19960
- 1997 to 199917
- 2000 to 20012
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