Cita APA (7th ed.)

Johnstone, D., & Cross, W. P. (1949). Elements of applied hydrology. Ronald Press Co..

Cita Chicago (17th ed.)

Johnstone, Don, i William P. Cross. Elements of Applied Hydrology. New York: Ronald Press Co., 1949.

Cita MLA (8th ed.)

Johnstone, Don, i William P. Cross. Elements of Applied Hydrology. Ronald Press Co., 1949.