Superscripting for book editions

Hi,

How do I enter superscriptions when creating a new entry? Like, I want to say 3rd edition but have the -rd superscripted. Even when I copy and paste from Word with a superscription, it disappears when I pasted into EndNote.

duplicate post: http://community.thomsonreuters.com/t5/EndNote-Styles-Filters-and/Superscripting-for-book-editions/m-p/133437