National Readership Surveys, 1961 1st Quarter

Abstract copyright UK Data Service and data collection copyright owner. The National Readership Surveys are conducted quarterly either by the British Market Research Bureau or...本数据集摘要的版权归英国数据服务（UK Data Service）机构及数据采集版权所有者共同所有。全国读者调查（National Readership Surveys）每季度由英国市场研究局（British Market Research Bureau）或……开展。