APA

Lines C., . (1981). Speeds and flows on the M1 in Bedfordshire during 1978 and 1979. Crowthorne: Transport and road Research Laboratory. Supplementary report no 661.

Chicago

Lines CJ, . 1981. Speeds and flows on the M1 in Bedfordshire during 1978 and 1979. Crowthorne: Transport and road Research Laboratory. Supplementary report no 661.

Harvard

Lines C., . (1981). Speeds and flows on the M1 in Bedfordshire during 1978 and 1979. Crowthorne: Transport and road Research Laboratory. Supplementary report no 661.

MLA

Lines CJ, . Speeds and flows on the M1 in Bedfordshire during 1978 and 1979. Crowthorne: Transport and road Research Laboratory. Supplementary report no 661. 1981.