Multiple authors need to be entered on separate lines within the Author field in your EndNote library. For example:
Multiple authors on the same line will be treated as one author name and display incorrectly in Word. Separate them using the Enter/Return key.
Organisations or official bodies as authors
To make sure EndNote displays these properly, make sure you enter a comma after the organisation/official body in the Author field:
Newcastle United Football Club,
Without a comma, EndNote will try and display this in the author, initial format:
Club, N. U. F.