@misc{oai:repository.dl.itc.u-tokyo.ac.jp:00046442,
 author = {菅野, 嘉之進},
 month = {},
 note = {種別: 実習報告},
 title = {北海道炭礦汽船株式会社万字炭礦実習報告．},
 year = {1925}
}