How to make changes in unformatted document?

I want to make changes in the references of a document that has been unformatted and then reformatted for inclusion in the master document. At the moment any new references I add appear in unformatted format (123#abc). How can I rectify this problem?

EN turn off “Instant formatting” when you unformat document. Turn this option on from the “Instant formatting” tab when you reformat. There is “Turn on” button.