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Science Paper
Vol. s3-45, Issue 267, 1893
March 01, 1893 EDT
Estimates of Geologic Time
Warren Upham
,
Earth sciences
•
https://doi.org/10.2475/ajs.s3-45.267.209
American Journal of Science
Upham, W. (1893). Estimates of geologic time.
American Journal of Science
,
s3-45
(267), 209–220.
https://doi.org/10.2475/ajs.s3-45.267.209
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