Spieler, C., & Spieler, C. (2018). Trains, Buses, People: An Opinionated Atlas of US Transit (1st ed. 2018.). Island Press/Center for Resource Economics : Imprint: Island Press. https://doi.org/10.5822/978-1-61091-904-3
Παραπομπή σε μορφή Chicago (17η εκδ.)Spieler, Christof, και Christof Spieler. Trains, Buses, People: An Opinionated Atlas of US Transit. 1st ed. 2018. Washington, DC: Island Press/Center for Resource Economics : Imprint: Island Press, 2018. https://doi.org/10.5822/978-1-61091-904-3.
Παραπομπή σε μορφή MLA (8th εκδ.)Spieler, Christof, και Christof Spieler. Trains, Buses, People: An Opinionated Atlas of US Transit. 1st ed. 2018. Island Press/Center for Resource Economics : Imprint: Island Press, 2018. https://doi.org/10.5822/978-1-61091-904-3.
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