A visitor's guide to geologic features at the Saylorville Lake emergency spillway

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245 0 2 ‡aA visitor's guide to geologic features at the Saylorville Lake emergency spillway / ‡cprepared by Iowa Department of Natural Resources, Geological Survey Bureau.
246 3 0 ‡aGeologic features at the Saylorville Lake emergency spillway
260 ‡a[Iowa City, Iowa : ‡bIowa Geological Survey, ‡c1993?].
300 ‡a1 sheet ([2] p.) : ‡bill. ; ‡c28 cm.
538 ‡aMode of access: Internet.
650 0 ‡aGeology, Stratigraphic.
650 0 ‡aGeology ‡zIowa ‡zSaylorville Lake.
710 1 ‡aIowa. ‡bDept. of Natural Resources. ‡bGeological Survey Bureau.
CID ‡a011196161
DAT 0 ‡b20100728000000.0
DAT 1 ‡a20120815062511.0 ‡b2024-04-01T17:55:53Z
DAT 2 ‡a2024-04-01T17:30:02Z
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974 ‡bPST ‡cPST ‡d20240401 ‡sgoogle ‡upst.000031447034 ‡y1993 ‡ric ‡qbib ‡tnon-US bib date1 >= 1929