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the Real State of the World. Cambridge University Press. p. 138. ISBN 978-0521804479. "Minerals commodity summary – cement – 2007". US United States Geological...120 KB (13,481 words) - 00:40, 9 May 2024
 | the Real State of the World. Cambridge University Press. p. 138. ISBN 978-0521804479. "Minerals commodity summary – cement – 2007". US United States Geological... 120 KB (13,481 words) - 00:40, 9 May 2024 |