National Readership Surveys, 1978 2nd 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...本摘要的版权归英国数据服务中心（UK Data Service）及数据集采集项目的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。