Cita APA (7th ed.)

Witheford, D. K. (1999). Consultants for DOT preconstruction engineering work. National Academy Press.

Cita Chicago (17th ed.)

Witheford, David K. Consultants for DOT Preconstruction Engineering Work. Washington, D.C: National Academy Press, 1999.

Cita MLA (9th ed.)

Witheford, David K. Consultants for DOT Preconstruction Engineering Work. National Academy Press, 1999.