National Readership Surveys, 1973 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...本摘要的版权归属英国数据服务中心（UK Data Service）及该数据集合的版权所有者。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……开展实施。