United States Steel Corporation. Chemists' Committee. (1912). The methods of the United States steel corporation for the commercial sampling and analysis of pig iron. United States Steel.
Lua i Stíl Chicago (17ú heag.)United States Steel Corporation. Chemists' Committee. The Methods of the United States Steel Corporation for the Commercial Sampling and Analysis of Pig Iron. [S.l.: United States Steel, 1912.
Lua MLA (8ú heag.)United States Steel Corporation. Chemists' Committee. The Methods of the United States Steel Corporation for the Commercial Sampling and Analysis of Pig Iron. United States Steel, 1912.
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