It looks like you're offline.
Donate
Change Website Language
Open Library logo
additional options menu
Last edited by ImportBot
May 6, 2022
Edit
History of edits to

Conceptual structures

Revision When Who Comment Diff
4 May 6, 2022
ImportBot
 import existing book    
3 October 4, 2021
ImportBot
 import existing book    
2 January 23, 2010
WorkBot
 add more information to works    
1 December 11, 2009
WorkBot
 add works page