Author: WALCOTT, CHARLES D. Title: Cambrian geology and paleontology III-4. Relations between the Cambrian and Pre-Cambrian formations in the vicinity of Helena, Montana.
Description: 1916. Smiths. Misc. Coll. 64-4; pp. 259-301, 4 fig. 6 plts. h.t. with map foling-out, phot. & fossils. Orig. wrps. very good.
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Price: EUR 10.00 = appr. US$ 10.87 Seller: Lingua Terrae Books
- Book number: 103109
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