@book
{TN_libero_mab2,
author = {
Keller, Albert E.
},
title = {
Accounting system and office management procedure for medium size metal mines
},
publisher = {U.S. Gov. Print. Off.},
year = {1934},
booktitle = {Bulletin / US Department of the Interior, Bureau of Mines ; 372},
address = {
Washington
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}