APA (7th ed.) Citation

Clarke, E., Crary, S. B., & Peterson, H. A. (1939). Overvoltages during power-system faults. Petroleum Technology., 58, 385.

Chicago Style (17th ed.) Citation

Clarke, E., S. B. Crary, and H. A. Peterson. "Overvoltages During Power-system Faults." Petroleum Technology. 58 (1939): 385.

MLA (9th ed.) Citation

Clarke, E., et al. "Overvoltages During Power-system Faults." Petroleum Technology., vol. 58, 1939, p. 385.