APA

Zwahlen H. T., . (1988). STOP AHEAD and STOP signs and their effect on driver eye scanning and driving performance. : Transportation Research Record.

Chicago

Zwahlen Helmut T, . 1988. STOP AHEAD and STOP signs and their effect on driver eye scanning and driving performance. : Transportation Research Record.

Harvard

Zwahlen H. T., . (1988). STOP AHEAD and STOP signs and their effect on driver eye scanning and driving performance. : Transportation Research Record.

MLA

Zwahlen Helmut T, . STOP AHEAD and STOP signs and their effect on driver eye scanning and driving performance. : Transportation Research Record. 1988.