Long, R. (1997). From Time to Time. Cantz.
Lua i Stíl Chicago (17ú heag.)Long, Richard. From Time to Time. Ostfildern: Cantz, 1997.
Lua MLA (8ú heag.)Long, Richard. From Time to Time. Cantz, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.