APA (7th ed.) Citation

Vallentine, H. R. (1967). Water in the service of man / by H.R. Vallentine. Penguin.

Chicago Style (17th ed.) Citation

Vallentine, H. R. Water in the Service of Man / by H.R. Vallentine. Penguin, 1967.

MLA (9th ed.) Citation

Vallentine, H. R. Water in the Service of Man / by H.R. Vallentine. Penguin, 1967.

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