APA (7th ed.) Citation

United States. Office of Education, Williams, L. A., & Wilson, L. R. (1918). Bureau of Extension of University of North Carolina. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Office of Education, L. A. Williams, and Louis Round Wilson. Bureau of Extension of University of North Carolina. Washington: U.S. GPO, 1918.

MLA (9th ed.) Citation

United States. Office of Education, et al. Bureau of Extension of University of North Carolina. U.S. GPO, 1918.