@book{ BN07013888, author = "宇治田, 富造 ", title = "経済学", publisher = "汐文社", year = "1974", series = "社会科学の基礎理論 / 労働者教育協会編", number = "第2巻", URL = "https://ci.nii.ac.jp/ncid/BN07013888" }