Dewey Statistics by Public Library

Statistics regarding the types of services provided by public libraries categorized into Dewey Decimal subject areas. Services include programs offered, questions asked of library staff, and circulation of materials.关于公共图书馆提供的各类服务之统计数据，按德威十进制学科分类进行整理。服务内容涵盖所提供的项目、向图书馆员工提出的问题以及资料流通情况。