- 1960 to 19644
- 1965 to 19695
- 1970 to 19743
- 1975 to 1979126
- 1980 to 1984312
- 1985 to 1989241
- 1990 to 199438
- 1995 to 199914
- 20002
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