Não informado. (2022). Public Transport International. International Union of Public Transport.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Public Transport International. Bruxelles: International Union of Public Transport, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Public Transport International. International Union of Public Transport, 2022.
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