Author: BECKER, H.F.
Title: The Metzel Ranch flora of the Upper Ruby River basin, southwestern Montana. [Oligocene]
Description: 1972. Reprint: Palaeontographica Bd. 141 B; pp. 1-61, 4 fig. 16 plts. h.t. Orig. wrps. presentation by author on front cover, ends of spine a bit worn, otherwiuse and contents very good, lg4to.

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