APA (7th ed.) Citation

Smith, L. L. (1931). Magnetite deposits of French Creek, Pennsylvania. Dept. of Internal Affairs, Topographic and Geologic Survey.

Chicago Style (17th ed.) Citation

Smith, Laurence Lowe. Magnetite Deposits of French Creek, Pennsylvania. Harrisburg, Pa.: Dept. of Internal Affairs, Topographic and Geologic Survey, 1931.

MLA (9th ed.) Citation

Smith, Laurence Lowe. Magnetite Deposits of French Creek, Pennsylvania. Dept. of Internal Affairs, Topographic and Geologic Survey, 1931.