Ding Yidong (宋) 丁易東 Yi xiang yi 易象義 Yixiang yi Ding Yidong (宋) 丁易東 [撰] - ju Gu-gong-bo-wu-guan suo cang Wen-yuan-ge ben ying yin 據故宮博物院所藏文淵閣本景印 - 2 vols., 16 chüan - 玉函山房輯佚書 0003 . Subjects--Topical Terms: Philosophy -- Classics -- Yi jing -- Song