APA (7th ed.) Citation

Collins, H. J., & Hart, C. A. (1936). Principles of road engineering. E. Arnold.

Chicago Style (17th ed.) Citation

Collins, Horatio John, and C. A. Hart. Principles of Road Engineering. London: E. Arnold, 1936.

MLA (9th ed.) Citation

Collins, Horatio John, and C. A. Hart. Principles of Road Engineering. E. Arnold, 1936.