APA (7th ed.) Citation

Richards, M. M., & Strahl, J. A. (1969). Elements of river forecasting (Revised edition.). ESSA.

Chicago Style (17th ed.) Citation

Richards, Marshall M., and Joseph A. Strahl. Elements of River Forecasting. Revised edition. Silver Springs, Md.: ESSA, 1969.

MLA (8th ed.) Citation

Richards, Marshall M., and Joseph A. Strahl. Elements of River Forecasting. Revised edition. ESSA, 1969.