Williams, M. C. (1984). Effects of converting a zebra to a pelican crossing. Transport and Road Research Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliams, Marian C. Effects of Converting a Zebra to a Pelican Crossing. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1984.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWilliams, Marian C. Effects of Converting a Zebra to a Pelican Crossing. Transport and Road Research Laboratory, 1984.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.