@article{oai:teapot.lib.ocha.ac.jp:00028550,
 author = {留岡, 幸助},
 issue = {11},
 journal = {幼兒教育},
 month = {Nov},
 note = {application/pdf, 一般雑誌記事},
 pages = {371--373},
 title = {自然的要素と兒童敎育},
 volume = {21},
 year = {1921}
}