検索結果 - "Mines and mineral resources Economic aspects"

The world economy -- and prospects for the development of Papua New Guinea's mineral resources / 著者: Vernon, D. C.

主題:

Role of government in mineral resources development /

主題: “…Mines and mineral resources Economic aspects.…”

The role of marketing arrangements in the evaluation and financing of mining projects / 著者: Stuckey, John A.

主題: “…Mines and mineral resources Economic aspects.…”