Cita APA (7a ed.)

Deen, R. C., & Hughes, R. D. (1987). A Chronicle of the Kentucky Transportation Research Program.

Cita Chicago Style (17a ed.)

Deen, Robert C., y Ronald D. Hughes. A Chronicle of the Kentucky Transportation Research Program. 1987.

Cita MLA (9a ed.)

Deen, Robert C., y Ronald D. Hughes. A Chronicle of the Kentucky Transportation Research Program. 1987.