000017557 000__ 00935cam\a2200277I\\4500 000017557 001__ 17557 000017557 005__ 20210513003654.0 000017557 008__ 750619s1967\\\\ilua\\\\\\\\\s00010\eng\d 000017557 035__ $$a(OCoLC)ocm01400232 000017557 035__ $$a17557 000017557 040__ $$cSPI$$dISE 000017557 049__ $$aISEA 000017557 090__ $$aTN872.I3$$bA25 no.87 000017557 092__ $$a553.28 000017557 1001_ $$aStevenson, D. L.$$q(David Lloyd) 000017557 24510 $$aGeologic structure of the Devonian-Silurian Hunton limestone megagroup in Illinois$$c[by] D. L. Stevenson [and] L. L. Whiting. 000017557 260__ $$aUrbana,$$c1967. 000017557 300__ $$a5 p. :$$bill. ;$$c28 cm. 000017557 4901_ $$aIllinois. State Geological Survey. Illinois Petroleum 87 000017557 500__ $$aCover title. 000017557 504__ $$aBibliography: p. 5. 000017557 650_0 $$aLimestone$$zIllinois. 000017557 650_0 $$aGeology, Stratigraphic$$yDevonian. 000017557 7001_ $$aWhiting, L. L.$$q(Lester Leroy),$$d1905-$$ejoint author 000017557 7102_ $$aIllinois State Geological Survey. 000017557 830_0 $$aIllinois petroleum ;$$v87. 000017557 85200 $$bgen$$hTN872.I3$$iA25$$ino.87 000017557 909CO $$ooai:library.usi.edu:17557$$pGLOBAL_SET 000017557 980__ $$aBIB 000017557 980__ $$aBOOK