APA

Hopkin J., . (1981). Role of an understanding of social factors in forecasting car ownership. Crowthorne: Transport and Road Research Laboratory. Supplementary report no 695.

Chicago

Hopkin JM, . 1981. Role of an understanding of social factors in forecasting car ownership. Crowthorne: Transport and Road Research Laboratory. Supplementary report no 695.

Harvard

Hopkin J., . (1981). Role of an understanding of social factors in forecasting car ownership. Crowthorne: Transport and Road Research Laboratory. Supplementary report no 695.

MLA

Hopkin JM, . Role of an understanding of social factors in forecasting car ownership. Crowthorne: Transport and Road Research Laboratory. Supplementary report no 695. 1981.