@article{oai:nagano.repo.nii.ac.jp:00000836,
 author = {井原, 成男},
 issue = {3},
 journal = {長野大学紀要, ACADEMIC BULLETIN OF NACANO UNIVERSITY},
 month = {Jan},
 note = {application/pdf},
 pages = {57--71},
 title = {もの・人・遊び : おもちゃの発達的利用},
 volume = {5},
 year = {1984}
}