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) Edmund Fantino and Nancy Squires and Nicola Delbrück and Christa Peterson,CHOICE BEHAVIOR AND THE ACCESSIBILITY OF THE REINFORCER1,Journal of the Experimental Analysis of Behavior,0022-5002,Wiley,1972-07,18,1,35-43,https://cir.nii.ac.jp/crid/1362544419636733824,https://doi.org/10.1901/jeab.1972.18-35