APA (7th ed.) Citation

Fitzpatrick, E. (1939). Copper sulphate for water works use. Journal of the New England Water Works Association., 53, 261.

Chicago Style (17th ed.) Citation

Fitzpatrick, E. "Copper Sulphate for Water Works Use." Journal of the New England Water Works Association. 53 (1939): 261.

MLA (9th ed.) Citation

Fitzpatrick, E. "Copper Sulphate for Water Works Use." Journal of the New England Water Works Association., vol. 53, 1939, p. 261.