Kerrod, R. (1997). Macmillan Encyclopedia of Science: V. 8 : Industry: Mining and manufacturing. Saint Joseph's University.
Chicago Style (17. basım) AtıfKerrod, Robin. Macmillan Encyclopedia of Science: V. 8 : Industry: Mining and Manufacturing. Saint Joseph's University, 1997.
MLA (8th ed.) AtıfKerrod, Robin. Macmillan Encyclopedia of Science: V. 8 : Industry: Mining and Manufacturing. Saint Joseph's University, 1997.
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