Author: COBBAN, W.A. & E.A. MEREWETHER
Title: Stratigraphy and paleontology of Mid-Cretaceous rocks in Minnesota and contiguous areas.
Description: 1983. United States Geological Survey Prof. Pap. 1253; 52 pp. 20 fig. 15 plts. h.t. with molluscs, mostly ammonites. Orig. wrps. libr. ticket taped to corner of front cover, 4to.

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