APA (7th ed.) Citation

Leitch, R. D. (1931). Acidity of Bennett branch of Sinnemahoning Creek, Pa., during low water, 1930. [publisher not identified].

Chicago Style (17th ed.) Citation

Leitch, R. D. Acidity of Bennett Branch of Sinnemahoning Creek, Pa., During Low Water, 1930. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Leitch, R. D. Acidity of Bennett Branch of Sinnemahoning Creek, Pa., During Low Water, 1930. [publisher not identified], 1931.