Review of mining activity; exploration started about 20 years ago; development of tin field; rapid development of transportation routes aids mining.
Nigeria in 1928
Min. Jl. (Lond.)
Mining Journal (London) ; 164 , n 4875
1929
2 pages
Aufsatz (Zeitschrift)
Englisch
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Emerald Group Publishing | 1970
|Engineering Index Backfile | 1929
European automobile salons in 1928, London (oct. 11-20, 1928)
Engineering Index Backfile | 1929
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