How to display full page numbers?

I am formating my document with CBE style references, and I have the page numbers abbreviated. For example, for a paper in pages 504-510, it writes only 504-10. I need to have the full pages numbers, including all digits of beginning and end. Does anybody know how to do that? 

I guess it is something like: Edit -> Output Style -> Edit CBE Style Manual C-S, but not sure what’s next. 

Thanks for any suggestion.