Companhia Acos Especiais Itabira. Carvão vegetal, bibliografia = Charcoal, bibliography = Holzkohle, Literaturangaben = Drevesnii ugol, bibliografiia.

Companhia Acos Especiais Itabira.

Carvão vegetal, bibliografia = Charcoal, bibliography = Holzkohle, Literaturangaben = Drevesnii ugol, bibliografiia.

[Rio de Janeiro, 1961]

Title page in Portuguese, English, German, and Russian.

Reproduced from typescript.

Charcoal -- Bibliography.

Charcoal, bibliography.

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