Tollazzi, T. (2015). Alternative Types of Roundabouts: An Informational Guide. Springer International Publishing : Imprint: Springer.
Lua i Stíl Chicago (17ú heag.)Tollazzi, Tomaž. Alternative Types of Roundabouts: An Informational Guide. Cham: Springer International Publishing : Imprint: Springer, 2015.
Lua MLA (8ú heag.)Tollazzi, Tomaž. Alternative Types of Roundabouts: An Informational Guide. Springer International Publishing : Imprint: Springer, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.