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IP address: 44.203.237.127
Time: 2024-08-03T11:11:03Z
URL: https://scholar.google.com/scholar_lookup?author=Spence%20Michael%20W.&doi=10.2307%2F280105&journal=American%20Antiquity&pages=769-788&publication%20year=1981&title=Obsidian%20Production%20and%20the%20State%20of%20Teotihuacan&volume=46