APA

Heydecker B. G., . (1982). A delay formula for traffic signals with variable red and green times. London: .

Chicago

Heydecker Benjamin Gorringe, . 1982. A delay formula for traffic signals with variable red and green times. London: .

Harvard

Heydecker B. G., . (1982). A delay formula for traffic signals with variable red and green times. London: .

MLA

Heydecker Benjamin Gorringe, . A delay formula for traffic signals with variable red and green times. London: . 1982.