APA (7th ed.) Citation

Agg, T. R., & McCullough, C. B. (1916). An investigation of concrete roadways. Iowa State Highway Commission.

Chicago Style (17th ed.) Citation

Agg, T. R., and Conde Balcom McCullough. An Investigation of Concrete Roadways. Ames, Iowa: Iowa State Highway Commission, 1916.

MLA (9th ed.) Citation

Agg, T. R., and Conde Balcom McCullough. An Investigation of Concrete Roadways. Iowa State Highway Commission, 1916.