Summary of mining and petroleum laws of the world
Ely, Northcutt
Summary of mining and petroleum laws of the world [Text] Ely, Northcutt - Washington US Department of the Interior, Bureau of Mines 1961 - vi,215 p. 26 cm. - U. S. Bureau of Mines. Information Circular 8017 .
Mining and Related Operations
622.007 / ELY
Summary of mining and petroleum laws of the world [Text] Ely, Northcutt - Washington US Department of the Interior, Bureau of Mines 1961 - vi,215 p. 26 cm. - U. S. Bureau of Mines. Information Circular 8017 .
Mining and Related Operations
622.007 / ELY