APA (7th ed.) Citation

Hopkins, E. S. (1936). Water purification control. Williams & Wilkins.

Chicago Style (17th ed.) Citation

Hopkins, Edward Scott. Water Purification Control. Baltimore: Williams & Wilkins, 1936.

MLA (9th ed.) Citation

Hopkins, Edward Scott. Water Purification Control. Williams & Wilkins, 1936.

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