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其他書名
A Linguistic Introduction to History
出版K. Paul, Trench, Trubner & Company, Limited, 1925
URLhttp://books.google.com.hk/books?id=S_1YAAAAMAAJ&hl=&source=gbs_api
註釋Summary: Shows safety procedures to prevent injury when working with electricity. Stresses alertness, planning, removal of potential hazards and good housekeeping.