- 1978 to 19792
- 1980 to 198112
- 1982 to 19840
- 1985 to 19864
- 1987 to 198911
- 1990 to 19915
- 1992 to 19940
- 1995 to 19963
- 1997 to 19999
- 2000 to 20011
- 20023
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