It looks like you're offline.
Donate
Change Website Language
Open Library logo
additional options menu
Last edited by ImportBot
August 20, 2012
Edit
History of edits to

Rock stratigraphy of the Silurian system in northeastern and northwestern Illinois

Revision When Who Comment Diff
5 August 20, 2012
ImportBot
 import new book    
4 August 18, 2012
ImportBot
 import new book    
3 December 5, 2010
Open Library Bot
 Added subjects from MARC records.    
2 January 22, 2010
WorkBot
 add more information to works    
1 December 9, 2009
WorkBot
 add works page