Author: WINSLOW, M.R.
Title: Plant spores and other microfossils from Upper devonian and Lower Mississippian rocks of Ohio.
Description: 1962. US Geol. Surv. Prof. Paper 364; 93 pp. 12 fig. 22 plts. h.t. 4 fold. plts. in pocket. Orig. wrps. with libr. stamp, spine repaired with paper tape, contents very good, 4to.

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