- 1970 to 197182
- 1972 to 197382
- 1974 to 197582
- 1976 to 197782
- 1978 to 197982
- 1980 to 198134
- 1982 to 198334
- 1984 to 198534
- 1986 to 198734
- 1988 to 198934
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