APA

Hardman E., . (1978). A survey of southbound motorway travel on the M6, M5 and M1 in 1975. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 842.

Chicago

Hardman EJ, . 1978. A survey of southbound motorway travel on the M6, M5 and M1 in 1975. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 842.

Harvard

Hardman E., . (1978). A survey of southbound motorway travel on the M6, M5 and M1 in 1975. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 842.

MLA

Hardman EJ, . A survey of southbound motorway travel on the M6, M5 and M1 in 1975. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 842. 1978.