000017389 000__ 00757cam\a2200265I\\4500
000017389 001__ 17389
000017389 005__ 20210513003629.0
000017389 008__ 750414s1957\\\\ilua\\\\\b\\\s00000\eng\d
000017389 010__ $$a57-009927
000017389 035__ $$a(OCoLC)ocm01276749
000017389 035__ $$a17389
000017389 040__ $$cSPI$$dISE
000017389 049__ $$aISEA
000017389 0500_ $$aQE105$$b.A45 no.241
000017389 092__ $$a557$$bGc-241
000017389 1001_ $$aSiever, Raymond.
000017389 24510 $$aVariation in coal reflectance.
000017389 260__ $$aUrbana,$$c1957.
000017389 300__ $$a11 p.$$billus.$$c26 cm.
000017389 4901_ $$aIllinois.  State Geological Survey.  Circular 241
000017389 504__ $$aBibliography: p. 10-11.
000017389 650_0 $$aReflection (Optics)
000017389 650_0 $$aCoal$$xTesting.
000017389 7102_ $$aIllinois State Geological Survey.
000017389 830_0 $$aCircular (Illinois State Geological Survey) ;$$v241
000017389 85200 $$bgen$$hQE105$$i.A45$$ino.241
000017389 909CO $$ooai:library.usi.edu:17389$$pGLOBAL_SET
000017389 980__ $$aBIB
000017389 980__ $$aBOOK