@book
{TN_libero_mab2,
author = {
MacElroy, George Edward
},
title = {
Engineering Factors in the ventilation of metal mines
},
publisher = {},
year = {1935},
booktitle = {Bulletin / US Department of the Interior, Bureau of Mines ; 385},
address = {
Washington
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}