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Last edited by ImportBot
October 8, 2020
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History of edits to

Extending the Challenge in Mathematics

Revision When Who Comment Diff
7 October 8, 2020
ImportBot
 import existing book    
6 July 31, 2020
ImportBot
 import existing book    
5 April 24, 2010
Open Library Bot
 Fixed duplicate goodreads IDs.    
4 April 16, 2010
bgimpertBot
 Added goodreads ID.    
3 April 13, 2010
Open Library Bot
 Linked existing covers to the edition.    
2 October 16, 2009
WorkBot
 add edition to work page    
1 April 30, 2008 Imported from amazon.com record