- 1968 to 19694
- 1970 to 19716
- 1972 to 197319
- 1974 to 19758
- 1976 to 197730
- 1978 to 197932
- 1980 to 198120
- 1982 to 198347
- 1984 to 198510
- 1986 to 19871
- 1988 to 19891
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