Structure of Herrin (no. 6) Coal Bed in Marion and Fayette Counties and Adjacent Parts of Bond, Clinton, Montgomery, Clay, Effingham, Washington, JeffRaymond SieverAgotado4,3Notifícame
Petrology and Sedimentation of Upper Chester Sandstones; Report of Investigations No. 170Raymond SieverAgotado4,3Notifícame
Classification of the Pennsylvanian Rocks of Illinois as of 1956; Illinois State Geological Survey Circular 217Raymond SieverAgotado4,3Notifícame
