@article{oai:seijo.repo.nii.ac.jp:00001152,
 author = {齋藤, 正},
 issue = {37},
 journal = {成城大學經濟研究},
 month = {Mar},
 note = {P(論文)},
 pages = {1--24},
 title = {外部経済論(四)},
 year = {1972}
}