- 1977 to 19795
- 1980 to 19816
- 1982 to 19845
- 1985 to 19867
- 1987 to 198925
- 1990 to 199119
- 1992 to 19940
- 1995 to 19961
- 1997 to 199910
- 2000 to 20015
- 20022
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