A staff member displays the cover of a thematic map on Sansha city - China's newest city established on Yongxing Island in the South China's Hainan province on July 24, 2012 - in Xidan Book Building in Beijing, on Nov 24, 2012, the day of its debut sale. The map has simultaneously gone on sale in some big bookstores across China on the same day. [Photo/Xinhua] |