Farmers of Forty Centuries; Or, Permanent Agriculture in China, Korea, and Japanbookgutenberg.orgSummary sourcesgutenbergRelevant source-backed detailsCATALOG · metadata onlySource recordrank this linkDetailsOriginal source
Chinese Diamonds for the King of Kingsbookgutenberg.orgSummary sourcesgutenbergRelevant source-backed detailsCATALOG · metadata onlySource recordrank this linkDetailsOriginal source