- 1970 to 19713
- 1972 to 19733
- 1974 to 19753
- 1976 to 19773
- 1978 to 19795
- 1980 to 19813
- 1982 to 19833
- 1984 to 19856
- 1986 to 19873
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