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SIEVR Raynond a:l t’|k:l (t) (1)

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    Author: SIEVR (Raynond)

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    L j SIEVR (Raynond). The Mi ssi ssippian-?ennaylvanian unconformity in Southern Illinois, etc. Urbana, 1951. See ILLINOIS, of. epartment of Registrati and Eucat. ivisI 01’ thStat’ Geoloca1Srve3&t o1’ IñveIjons.’j 152.

    Card ID: 558