@article{oai:teapot.lib.ocha.ac.jp:00020990,
 author = {波多野, 完治},
 issue = {11},
 journal = {幼児の教育},
 month = {Nov},
 note = {application/pdf, 一般雑誌記事},
 pages = {6--9},
 title = {遊びの心理について},
 volume = {55},
 year = {1956}
}