Plus d’un million de livres, à portée de main !
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Paul Adams Witherspoon Livres

    Petroleum Industry in Illinois in 1955; Illinois State Geological Survey Bulletin No. 81
    Summary of Water Flood Operations in Illinois Oil Pools During 1954; ISGS IL Petroleum Series No. 73
    Summary of Water Flood Operations in Illinois Oil Pools During 1953; Illinois State Geological Survey Circular 193