- 1980 to 19811
- 1982 to 19830
- 1984 to 19850
- 1986 to 19874
- 1988 to 19892
- 1990 to 19912
- 1992 to 19930
- 1994 to 19950
- 19961
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