APA (7th ed.) Citation

Engel, C., & Rogers, J. H. (1995). How wide is the border? Board of Governors of the Federal Reserve System.

Chicago Style (17th ed.) Citation

Engel, Charles, and John H. Rogers. How Wide Is the Border? Washington, DC: Board of Governors of the Federal Reserve System, 1995.

MLA (9th ed.) Citation

Engel, Charles, and John H. Rogers. How Wide Is the Border? Board of Governors of the Federal Reserve System, 1995.