Copper is still the world's most important metal next to iron [microform].

Detaylı Bibliyografya
Müşterek Yazar: Federated Copper Mines, inc
Materyal Türü: Visual Material
Dil:English
Baskı/Yayın Bilgisi: Quezon City Photoduplication Service. University of the Philippines Library 1976.
Konular: