Čájehuvvojit 1 - 4 oktiibuot 4 bohtosis ohcui Robertson, W.A', ohcanáigi: 0,00s Aiddostahte ozu
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    Project No. 24. Major tests on empire timbers: Investigation 21. Properties of ceylon gurjun (Dipterocarpus zeylanicus Thw.) Dahkki Robertson, W.A

    Almmustuhtton 1934
    Girji
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    The empire forestry handbook 1933

    Almmustuhtton 1933
    Eará dahkkit: “…Robertson, W.A…”
    Girji