APA (7th ed.) Citation

Spring, H. M. (1939). How to cure unstable boilers. Power, 83, 613.

Chicago Style (17th ed.) Citation

Spring, H. M. "How to Cure Unstable Boilers." Power 83 (1939): 613.

MLA (9th ed.) Citation

Spring, H. M. "How to Cure Unstable Boilers." Power, vol. 83, 1939, p. 613.