Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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