APA (7th ed.) Citation

Hirsch, T. J., Panak, J. J., & Buth, E. (1978). Tubular W-beam bridge rail. Texas Transportation Institute, Texas A&M University.

Chicago Style (17th ed.) Citation

Hirsch, T. J., John J. Panak, and Eugene Buth. Tubular W-beam Bridge Rail. College Station: Texas Transportation Institute, Texas A&M University, 1978.

MLA (9th ed.) Citation

Hirsch, T. J., et al. Tubular W-beam Bridge Rail. Texas Transportation Institute, Texas A&M University, 1978.