- 1973 to 19745
- 1975 to 19763
- 1977 to 19796
- 1980 to 19812
- 1982 to 19842
- 1985 to 19860
- 1987 to 19898
- 1990 to 19912
- 1992 to 19942
- 1995 to 199612
- 1997 to 199916
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