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1كتاببواسطة Smith, Phillip H., 1905-"…American Institute of Mining, Metallurgical, and Petroleum Engineers. Pittsburgh Section…"
منشور في 1964
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2كتابمنشور في 1961"…American Institute of Mining, Metallurgical, and Petroleum Engineers. Pittsburgh Section…"
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3كتابمنشور في 1959"…American Institute of Mining, Metallurgical, and Petroleum Engineers. Pittsburgh Section…"