著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI)
SMITH E. O.,Does play matter? Functional and evolutionary aspects of animal and human play,Behav. Brain Sci.,,,1982,5,,139-184,https://cir.nii.ac.jp/crid/1571417124865170560,