APA (7th ed.) Citation

Helfman, E. S. (1960). Water for the world. Longmans, Green.

Chicago Style (17th ed.) Citation

Helfman, Elizabeth S. Water for the World. New York [etc.]: Longmans, Green, 1960.

MLA (9th ed.) Citation

Helfman, Elizabeth S. Water for the World. Longmans, Green, 1960.

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