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Report of the Royal Commission of Inquiry Into the Question of Compulsory Retirement of Employees in Coal and Oil-shale Mines in N.S.W. at the Age of Sixty Years

New South Wales. Parliament. Legislative Assembly

出版	Government Printer, South Africa, 1941
URL	http://books.google.com.hk/books?id=WQssNAAACAAJ&hl=&source=gbs_api