APA

Ellis C., . (1975). Risk and the pavement design decision in developing countries. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 667.

Chicago

Ellis CI, . 1975. Risk and the pavement design decision in developing countries. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 667.

Harvard

Ellis C., . (1975). Risk and the pavement design decision in developing countries. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 667.

MLA

Ellis CI, . Risk and the pavement design decision in developing countries. Crowthorne: Transport and Road Research Laboratory. Lab. report nr 667. 1975.