主要作品或论述:
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1.1957 Archeological Investigations at the Mouth of the Amazon (with C. Evans)
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2.1962 Possible Transpacific Contact on the Coast of Ecuador (with E. Estrada and C. Evans), Science (New York, NY) 135 (3501), 371
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3.1966 A Transpacific Contact in 3000 BC (with C. Evans), Scientific American, Vol. 214, p. 28-35
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4.1969 Speculations on Early Pottery Diffusion Routes Between South and Middle America (with C. Evans), Biotropica, p. 20-27
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5.1975 The Transpacific Origin of Mesoamerican Civilization: A Preliminary Review of the Evidence and Its Theoretical Implications, American Anthropologist, New Series, Vol. 77, No. 1, p. 1-27