Prudhoe, J., & Christie, A. W. (1981). Effects of lorry control covering a rural area of Hertfordshire. Transport and Road Research Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPrudhoe, J., और A. W. Christie. Effects of Lorry Control Covering a Rural Area of Hertfordshire. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPrudhoe, J., और A. W. Christie. Effects of Lorry Control Covering a Rural Area of Hertfordshire. Transport and Road Research Laboratory, 1981.
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