Image: https://cdn.whensthebirthday.com/gallery/2017/1/bf-skinner/archivo-b-f-skinner-en-harvard-alrededor-de-1950-jpg.jpg
BF Skinner
professions.scientist de Estados Unidos
Image: https://cdn.whensthebirthday.com/gallery/2017/1/bf-skinner/archivo-b-f-skinner-en-harvard-alrededor-de-1950-jpg.jpg
professions.scientist de Estados Unidos