APA (7th ed.) Citation

Dyer, John T., Quarry Co, & Conway, J. A. (1931). Mining and crushing methods and costs at Monocacy quarry of John T. Dyer Quarry Company, Monocacy, Pa. [publisher not identified].

Chicago Style (17th ed.) Citation

Dyer, John T., Quarry Co, and Joseph A. Conway. Mining and Crushing Methods and Costs at Monocacy Quarry of John T. Dyer Quarry Company, Monocacy, Pa. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Dyer, John T., Quarry Co, and Joseph A. Conway. Mining and Crushing Methods and Costs at Monocacy Quarry of John T. Dyer Quarry Company, Monocacy, Pa. [publisher not identified], 1931.