- 1970 to 19717
- 1972 to 19737
- 1974 to 19757
- 1976 to 19777
- 1978 to 19797
- 1980 to 19817
- 1982 to 19837
- 1984 to 19857
- 1986 to 19877
- 1988 to 19897
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