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  1. 1

    Mineral-rock handbook rapid-easy mineral-rock determination : written for anyone interested in minerals and rocks per Proctor, Paul Dean 1918-, Peterson, P. Robert, Kackstaetter, Uwe

    Publicat 1991
    Llibre

    Mineral-rock handbook rapid-easy mineral-rock determination : written for anyone interested in minerals and rocks
  2. 2

    Uranium where it is and how to find it per Proctor, Paul Dean 1918-

    Publicat 1954
    Llibre

    Uranium where it is and how to find it

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