APA (7th ed.) Citation

Langworthy, V. W. (1981). Water treatment plant operation. Ann Arbor Science Publishers.

Chicago Style (17th ed.) Citation

Langworthy, V. W. Water Treatment Plant Operation. [Ann Arbor, Mich.]: Ann Arbor Science Publishers, 1981.

MLA (9th ed.) Citation

Langworthy, V. W. Water Treatment Plant Operation. Ann Arbor Science Publishers, 1981.

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