What has the author Richard K Brail written?

Richard Braungart has written:

'Moderne deutsche exlibris' -- subject(s): German Bookplates

'Das moderne deutsche Gebrauchs-Exlibris' -- subject(s): Bookplates, German Bookplates

'Der Akt im modernen exlibris' -- subject(s): Bookplate designers, Bookplates, German Bookplates, Nude in art, Nude in bookplates