Dangos 1 - 2 canlyniadau o 2 ar gyfer chwilio 'Humphrey, C.J', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1
    Railroad Tie Decay Comprising The Decay of Ties in Storage: Defects in Cross Tis, Caused by Fungi

    Railroad Tie Decay Comprising The Decay of Ties in Storage: Defects in Cross Tis, Caused by Fungi gan Humphrey, C.J

    Cyhoeddwyd 1939
    Llyfr
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  2. 2
    Timber storage conditions in the eastern and southern states with reference to decay problems

    Timber storage conditions in the eastern and southern states with reference to decay problems gan Humphrey, C.J

    Cyhoeddwyd 1929
    Llyfr
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:

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