TY -
BOOK
AU - Howell, Spencer P.
TI -
Explosives accidents in the anthracite mines of Pennsylvania
1923 - 1927
PB - U.S. Gov. Print. Off.
PY - 1931
BT - Bulletin / US Department of the Interior, Bureau of Mines ; 326
CY - Washington
UR - http://slubdd.de/katalog?TN_libero_mab2
ER -