Hi Rose,
This can happen if the Sources.xml file (the Master List that holds the items listed in References=>Citations & Bibliography=>Manage
Sources) becomes corrupted).
If you create a new entry there can you use that? Can you insert a placeholder?
=================
each time I want to add citations I get something saying Invalid source
specified.>>
--
Bob Buckland ?
MS Office System Products MVP
*Courtesy is not expensive and can pay big dividends*