@article{oai:rikkyo.repo.nii.ac.jp:00002834,
 author = {高浦, 忠彦 and Takauwa,  Tadahiko},
 issue = {1},
 journal = {立教經濟學研究},
 month = {Jun},
 note = {P(論文)},
 pages = {99--137},
 title = {初期ボルティモア・オハイオ鉄道における営業費比率と資本利益率},
 volume = {56},
 year = {2002}
}