- 1399D.
- Ffeil
- 1918.
Rhan oCwrtmawr manuscripts
Correspondence and reports by Evan Harries and others relating to the pollution of the River Teifi.
Water -- Pollution -- Wales -- Cardiganshire
Tacsonomeg
Cod
Nodyn(nodiadau) cwmpas
Nodyn(nodiadau) ffynhonnell
Nodyn(nodiadau) darganfod
Termau hierarchaidd
Water -- Pollution -- Wales -- Cardiganshire
Termau cyfwerth
Water -- Pollution -- Wales -- Cardiganshire
Termau cysylltiedig
Water -- Pollution -- Wales -- Cardiganshire
1 Disgrifiad archifol canlyniad ar gyfer Water -- Pollution -- Wales -- Cardiganshire
1 canlyniad yn uniongyrchol gysylltiedig Eithrio termau culach