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Last edited by ImportBot
February 28, 2022
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History of edits to

The Electromagnetic Spectrum

Revision When Who Comment Diff
6 February 28, 2022
ImportBot
 import existing book    
5 October 13, 2020
MARC Bot
 import existing book    
4 February 14, 2020
MARC Bot
 remove fake subjects    
3 July 22, 2017
Mek
 adding subject: In library    
2 October 26, 2011
ImportBot
 import new book    
1 July 16, 2010
WorkBot
 work found