IES, The Roundabout Lighting Subcommittee of the IES, & Roadway Lighting Committee. (2008). Design guide for roundabout lighting. IESNA.
Lua i Stíl Chicago (17ú heag.)IES, The Roundabout Lighting Subcommittee of the IES, agus Roadway Lighting Committee. Design Guide for Roundabout Lighting. Nueva York: IESNA, 2008.
Lua MLA (9ú heag.)IES, et al. Design Guide for Roundabout Lighting. IESNA, 2008.
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