Ungdomars involvering i idrott 1973-1974

A two-part survey aimed towards students and their parents, asking questions about the involvement in sports and physical activities among youths. En enkätundersökning i två...本数据集为一项面向学生及其家长的两部分式调查问卷，旨在调研青少年群体参与体育及身体活动的相关情况。一项分为两部分的问卷调查……