- 1972 to 19731
- 1974 to 19750
- 1976 to 19770
- 1978 to 19798
- 1980 to 19815
- 1982 to 19830
- 1984 to 19850
- 1986 to 198716
- 1988 to 19895
- 1990 to 19914
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