APA (7th ed.) Citation

National Research Council (U.S.). Highway Research Board. Ad Hoc Committee on Factors of Safety in Soil Engineering. (1969). Symposium: Safety factors in soil engineering ; 4 reports. Highway Research Board, National Research Council.

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Highway Research Board. Ad Hoc Committee on Factors of Safety in Soil Engineering. Symposium: Safety Factors in Soil Engineering ; 4 Reports. Washington, D.C: Highway Research Board, National Research Council, 1969.

MLA (9th ed.) Citation

National Research Council (U.S.). Highway Research Board. Ad Hoc Committee on Factors of Safety in Soil Engineering. Symposium: Safety Factors in Soil Engineering ; 4 Reports. Highway Research Board, National Research Council, 1969.