Service, Alfred L.
An evaluation of the western phosphate industry and its resources (in five parts) 5. Trends and outlook Service, Alfred L. - Washington Bureau of mines 1967 - Report Investigation 6935 .
industria
tendencia
recursos
fosfato
661.63 (47)
An evaluation of the western phosphate industry and its resources (in five parts) 5. Trends and outlook Service, Alfred L. - Washington Bureau of mines 1967 - Report Investigation 6935 .
industria
tendencia
recursos
fosfato
661.63 (47)