- 
              
            1Awduron Eraill: “...Bonsels, Bernd Holger...”
 Rhif Galw: Be/110/Sha/26-16Llyfr
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            2Awduron Eraill: “...Bonsels, Bernd Holger...”
 Rhif Galw: Be/110/Sha/26-14Llyfr
- 
              
            3Awduron Eraill: “...Bonsels, Bernd Holger...”
 Rhif Galw: Be/110/Sha/26-11Llyfr