Cozkley,George J.
International strategic minerale inventory summary report : a regional assessment of sected mineral commodities in subequatorial africa / George J. Coakley, Richard N. Gockett,Erik C.I. Hammerbeck . - [S.L] : united states department of the interior, bureau of mines, 1991 . - 44 p. : couv.ill.en coul ; 28 cm. cartes
553.COA
International strategic minerale inventory summary report : a regional assessment of sected mineral commodities in subequatorial africa / George J. Coakley, Richard N. Gockett,Erik C.I. Hammerbeck . - [S.L] : united states department of the interior, bureau of mines, 1991 . - 44 p. : couv.ill.en coul ; 28 cm. cartes
553.COA