Doubled reference list in word

Hi.

I have merged several word documents together, each document with their own references. When I merged the documents I converted every document to “convert to unformatted citations”, and after merging I used “Update citations and bibliography”. And all this worked poerfectly, until I wanted to add another reference in the merged document. When I added a reference, the reference list doubles, doulicates itself. 

Anyone know how to solve this? I want to be able to edit my document further after the merging. 

No, I did not try that. Im guessing that goes for all the documents before merging? Where do I find that button? Could not find the option in the “convert citations and bibliography” drop down menu. 

Thank you for the reply

I have now managed to merge and add new references without the list doubleing. I converted to unformatted, and then updated the citations. It seems that the difference lied in pressing ctrl-6 after unformatting the document, before copying the text. 

Thank you for all help