Title: Qing shao nian bu ke bu zhi de wen hua chang shi quan ji
Description: 本书介绍了地理地名、天文历法、节庆礼俗、姓氏称谓、医药卫生、交通邮政、商业经济、政治法制、科学技术、教育学校、军事武器、历史考古等・
Subjects: Children's Encyclopedias and dictionaries, Chinese, Chinese language materials