Lua APA (7ú heag.)
Ypma, H. J. M. (2004). Hip hotels. Thames & Hudson.
Lua i Stíl Chicago (17ú heag.)
Ypma, Herbert J. M. Hip Hotels. New York, N.Y.: Thames & Hudson, 2004.
Lua MLA (9ú heag.)
Ypma, Herbert J. M. Hip Hotels. Thames & Hudson, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.