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Lethbridge, Its Coal Industry

Alex JohnstonKeith G. GladwynLeonard Gregory Ellis

出版	Lethbridge Historical Society, 1989
主題	Technology & Engineering / Mining
ISBN	09192248149780919224810
URL	http://books.google.com.hk/books?id=DG9YAAAAMAAJ&hl=&source=gbs_api