APA (7th ed.) Citation

Ward, R. C. (1967). Principles of hydrology. McGraw-Hill.

Chicago Style (17th ed.) Citation

Ward, R. C. Principles of Hydrology. London: McGraw-Hill, 1967.

MLA (9th ed.) Citation

Ward, R. C. Principles of Hydrology. McGraw-Hill, 1967.

Warning: These citations may not always be 100% accurate.