Tollazzi, T. (2015). Alternative Types of Roundabouts: An Informational Guide. Springer International Publishing : Imprint: Springer.
Chicago-referens (17:e uppl.)Tollazzi, Tomaž. Alternative Types of Roundabouts: An Informational Guide. Cham: Springer International Publishing : Imprint: Springer, 2015.
MLA-referens (8:e uppl.)Tollazzi, Tomaž. Alternative Types of Roundabouts: An Informational Guide. Springer International Publishing : Imprint: Springer, 2015.
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