Pynciau a Argymhellir O fewn eich chwiliad
Dangos 1 - 12 canlyniadau o 12 ar gyfer chwilio '', amser ymholiad: 0.04e Mireinio'r Canlyniadau
  1. 1
    gan Eisner, H. S.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    1 online resource (24 p.) : ill.
    Center for Research Libraries: v.130 (Jun 1956)
    Mynediad Ar-lein
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  2. 2
    gan Hartwell, F. J.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    41 p. : ill. ; 24 cm.
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  3. 3
    gan Grant, R. L.
    Cyhoeddwyd 1956
    [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1956.
    10 p. : ill. ; 27 cm.
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  4. 4
    gan Grimshaw, H. C.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    1 online resource (16 p.)
    Center for Research Libraries: v.132 (Jun 1956)
    Mynediad Ar-lein
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  5. 5
    gan Grimshaw, H. C.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    16 p. ; 24 cm.
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  6. 6
    gan Eisner, H. S.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    24 p. : ill. ; 24 cm.
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  7. 7
    gan Shaw, S. K.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    1 online resource (21 p.) : ill.
    Center for Research Libraries
    Mynediad Ar-lein
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  8. 8
    Cyhoeddwyd 1956
    [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1956.
    33 p. : ill. ; 27 cm.
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  9. 9
    gan Hodkinson, J. R.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    1 online resource (32 p.) : ill.
    Center for Research Libraries: v.133 (Jun 1956)
    Mynediad Ar-lein
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  10. 10
    gan Shaw, S. K.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    21 p. : ill. ; 24 cm.
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  11. 11
    gan Hartwell, F. J.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    1 online resource (41 p.) : ill.
    Center for Research Libraries: v.134 (Jun 1956)
    Mynediad Ar-lein
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  12. 12
    gan Hodkinson, J. R.
    Cyhoeddwyd 1956
    Sheffield : Ministry of Fuel and Power, Safety in Mines Research Establishment, 1956.
    32 p. : ill. ; 24 cm.
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:

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