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USGS P 236-A

Foraminifera from the Arctic Slope of Alaska; general introduction and Part 1, Triassic foraminifera

Bibliographic Reference

Tappan, Helen, 1951, Foraminifera from the Arctic Slope of Alaska; general introduction and Part 1, Triassic foraminifera: U.S. Geological Survey Professional Paper 236-A, p. 1-20.

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