- 1978 to 19791
- 1980 to 19811
- 1982 to 19841
- 1985 to 19861
- 1987 to 19891
- 1990 to 19911
- 1992 to 19941
- 1995 to 19961
- 1997 to 19991
- 20001
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