- 1977 to 19792
- 1980 to 19812
- 1982 to 19840
- 1985 to 19861
- 1987 to 198918
- 1990 to 19914
- 1992 to 19940
- 1995 to 199617
- 1997 to 199927
- 2000 to 200119
- 2002 to 200317
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