Cita APA (7th ed.)

Michie, J. D., & Calcote, L. R. (1968). Location, selection, and maintenance of highway guardrails and median barriers. Highway Research Board, National Research Council.

Cita Chicago (17th ed.)

Michie, Jarvis Dale, i Lee R. Calcote. Location, Selection, and Maintenance of Highway Guardrails and Median Barriers. Washington, D.C: Highway Research Board, National Research Council, 1968.

Cita MLA (9th ed.)

Michie, Jarvis Dale, i Lee R. Calcote. Location, Selection, and Maintenance of Highway Guardrails and Median Barriers. Highway Research Board, National Research Council, 1968.