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Coal-mine Accidents in the United States and Foreign Countries
Clarence Hall
Dorsey Alfred Lyon
Harold Hayward Clark
Nelson Horatio Darton
Richard Bishop Moore
Karl Ludwig Kithil
Ralph W. Crocker
Robert Mayro Keeney
Spencer Pritchard Howell
出版
U.S. Government Printing Office
, 1913
URL
http://books.google.com.hk/books?id=Knk6AQAAMAAJ&hl=&source=gbs_api
EBook
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