Jackson, R. L. (1979). Luxury express commuter coach services. Transport and Road Research Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJackson, R. L. Luxury Express Commuter Coach Services. Crowthorne, [Eng.]: Transport and Road Research Laboratory, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJackson, R. L. Luxury Express Commuter Coach Services. Transport and Road Research Laboratory, 1979.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.