APA (7th ed.) Citation

Raymond, W. G., Riggs, H. E., & Sadler, W. C. (1947). Elements of railroad engineering (6th ed.). J. Wiley.

Chicago Style (17th ed.) Citation

Raymond, William Galt, Henry Earle Riggs, and Walter Clifford Sadler. Elements of Railroad Engineering. 6th ed. New York: J. Wiley, 1947.

MLA (9th ed.) Citation

Raymond, William Galt, et al. Elements of Railroad Engineering. 6th ed. J. Wiley, 1947.