- 19763
- 1977 to 19792
- 1980 to 19813
- 1982 to 19841
- 1985 to 19863
- 1987 to 198930
- 1990 to 199117
- 1992 to 19941
- 1995 to 199640
- 1997 to 199911
- 2000 to 200127
- 2002 to 200334
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