These consist of 200 files with the original 'APC 12-' number inscribed on the cover. These files contain the majority of material relating to the APC projects, working parties, and publications, although much of the earliest material is found in the miscellaneous files, listed at APC/5.
APC 12 -Subject files
- Reference
- GB 133 APC/1
- Dates of Creation
- 1976-1991