APA (7th ed.) Citation

Root, H. O. (1927). Subgrade support under concrete pavements. Engineering News-Record, 99, 27.

Chicago Style (17th ed.) Citation

Root, H. O. "Subgrade Support Under Concrete Pavements." Engineering News-Record 99 (1927): 27.

MLA (9th ed.) Citation

Root, H. O. "Subgrade Support Under Concrete Pavements." Engineering News-Record, vol. 99, 1927, p. 27.