However, library is not a kind of pure public goods, but has the attributes of both public and private goods, and can provide some charged information services in some areas. 3 refs.

• 图书馆又不是纯公共物品,兼备公共物品和私人物品二重属性,可以在信息服务的某些方面实行有偿服务。参考文献3。