If two separate citations appear together you may want to combine these into a single reference for style purposes.
Simply highlight the two references you need to merge and press the ‘Merge Citations’ button on the toolbar.
The two citations will be merged into a single, properly styled reference.
You can also add multiple citations when inserting citations. Instead of pressing ‘Ok’ after identifying a source in the Citation Editor, simply search for a second source to reference using the same interface.
Once you’ve selected the desired second item, press ‘Ok’ to add both items as a single, merged reference.