APA (7th ed.) Citation

Hopkins, G. R., Vance, R. W., & Kasraie, B. (1980). Scour around bridge piers. Dept. of Transportation, Federal Highway Administration, Offices of Research and Development, Environmental Division.

Chicago Style (17th ed.) Citation

Hopkins, G. R., R. W. Vance, and Behzad Kasraie. Scour Around Bridge Piers. Washington: Dept. of Transportation, Federal Highway Administration, Offices of Research and Development, Environmental Division, 1980.

MLA (9th ed.) Citation

Hopkins, G. R., et al. Scour Around Bridge Piers. Dept. of Transportation, Federal Highway Administration, Offices of Research and Development, Environmental Division, 1980.