- G3/66-9.
- Is-gyfres
- 1968-1970.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
Dangos 15 canlyniad
Disgrifiad archifol- J2/8-22.
- Is-gyfres
- 1954-1972.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- E1/1-34.
- Is-gyfres
- [c.1965]-1983.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- F5/40-47.
- Is-gyfres
- 1978-1981.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- G3/20-43.
- Is-gyfres
- 1961-1976.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- E3/1-13.
- Is-gyfres
- 1975-1984.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- F5/3-7.
- Is-gyfres
- 1970-1974.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- G2/5-25.
- Is-gyfres
- 1975-1977.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- J 2/1-7.
- Is-gyfres
- [c.1951]-1974.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- E1/35-66.
- Is-gyfres
- 1969-1980.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- F5/27-39.
- Is-gyfres
- 1975-1984.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
'A companion to the literature of Wales',
- F5/48-72.
- Is-gyfres
- 1977-1981.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- G2/1-4.
- Is-gyfres
- [c.1964-post1974].
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- G3/1-19.
- Is-gyfres
- 1962-1975.
Rhan oHarri Webb Papers,
For content see individual file descriptions.
- J2/23-46.
- Is-gyfres
- 1957-1966.
Rhan oHarri Webb Papers,
For content see individual file descriptions.