@misc{oai:repository.dl.itc.u-tokyo.ac.jp:00046149,
 author = {今泉, 宗一},
 month = {},
 note = {種別: 実習報告},
 title = {Report of Shinniu Colliery． [新入炭山報告） [附図共2冊]．},
 year = {1906}
}