- Vol. 5.
- Ffeil
- 1974-1975.
Rhan oWyn Roberts Diaries,
Wyn Roberts' diary from September 1974 to March 1975.
Dangos 5 canlyniad
Disgrifiad archifol- Vol. 16.
- Ffeil
- 1992-1993.
Rhan oWyn Roberts Diaries,
Wyn Roberts' diary from April 1992 to August 1993.
- Vol. 9.
- Ffeil
- 1977-1979.
Rhan oWyn Roberts Diaries,
Wyn Roberts' diary from November 1977 to May 1979.
- Vol. 15.
- Ffeil
- 1991-1992.
Rhan oWyn Roberts Diaries,
Wyn Roberts' diary from January 1991 to April 1992.
- Vol. 4.
- Ffeil
- 1973-1974.
Rhan oWyn Roberts Diaries,
Wyn Roberts' diary from August 1973 to July 1974 in a volume along with a folder containing a typewritten extract from the volume produced with a view to publication.