Lua APA (7ú heag.)
Congdon, K. G. (2014). Happy clouds, happy trees: The Bob Ross phenomenon. University Press of Mississippi.
Lua i Stíl Chicago (17ú heag.)
Congdon, Kristin G. Happy Clouds, Happy Trees: The Bob Ross Phenomenon. Jackson, Mississippi: University Press of Mississippi, 2014.
Lua MLA (9ú heag.)
Congdon, Kristin G. Happy Clouds, Happy Trees: The Bob Ross Phenomenon. University Press of Mississippi, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.