APA (7th ed.) Citation

Gray, D. M. (1970). Handbook on the principles of hydrology. Water Information Center, Inc..

Chicago Style (17th ed.) Citation

Gray, Donald M. Handbook on the Principles of Hydrology. Iowa: Water Information Center, Inc., 1970.

MLA (9th ed.) Citation

Gray, Donald M. Handbook on the Principles of Hydrology. Water Information Center, Inc., 1970.

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