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IP address: 44.204.215.227
Time: 2024-08-03T03:05:44Z
URL: https://scholar.google.com/scholar_lookup?author=Cobean%20Robert%20H.&author=Coe%20Michael%20D.&author=Kharkar%20Dinkar%20P.&author=Perry%20Edward%20A.&author=Turekian%20Karl%20K.&doi=10.1126%2Fscience.174.4010.666&journal=Science&pages=666-671&publication%20year=1971&title=Obsidian%20Trade%20at%20San%20Lorenzo%20Tenochtitlan%2C%20Mexico&volume=174