00479nam a2200109Ia 4500 241024s9999||||xx |||||||||||||| ||und|| MURAKUSHI, Nisaburo Technology and labour in Japanese coal mining 1980 United Nations University.82 JAPAN | COAL MINES | MINING INDUSTRY | TECHNOLOGY | COAL INDUSTRY 0 0 0 0 MIDS MIDS WP 0000-00-00 0 338.2720952 M0 WP15648 2024-10-24 16:46:32 2024-10-24 WP 69820 69820