@article{oai:kansaigaidai.repo.nii.ac.jp:00007506,
 author = {都築, 正喜 and Tsuzuki, Masaki and 早瀬, 光秋 and Hayase, Mitsuaki},
 journal = {研究論集, Kenkyu-Ronshū : The Review of Inquiry and Research},
 month = {Jan},
 pages = {463--472},
 title = {LL市販教材と著作権問題},
 volume = {25},
 year = {1977},
 yomi = {ツズキ, マサキ and ハヤセ, ミツアキ}
}