APA (7th ed.) Citation

Lewis, R. S. (1941). Elements of mining (2d ed.). J. Wiley.

Chicago Style (17th ed.) Citation

Lewis, Robert Strong. Elements of Mining. 2d ed. New York: J. Wiley, 1941.

MLA (9th ed.) Citation

Lewis, Robert Strong. Elements of Mining. 2d ed. J. Wiley, 1941.