APA (7th ed.) Citation

Deleys, N. J., & McHenry, R. R. (1967). Highway guardrails: A review of current practice. Highway Research Board.

Chicago Style (17th ed.) Citation

Deleys, Norman J., and Raymond R. McHenry. Highway Guardrails: A Review of Current Practice. [Washington]: Highway Research Board, 1967.

MLA (9th ed.) Citation

Deleys, Norman J., and Raymond R. McHenry. Highway Guardrails: A Review of Current Practice. Highway Research Board, 1967.