@misc{oai:repository.dl.itc.u-tokyo.ac.jp:00046172,
 author = {坪内, 三郎},
 month = {},
 note = {種別: 実習報告},
 title = {農商務省所轄製鉄所二瀬出張所炭山報告書 [附図共2冊]．},
 year = {1907}
}