APA (7th ed.) Citation

Spring, H. M. (1933). Eliminating damp coal difficulties. Power Plant Engineering., 37, 145.

Chicago Style (17th ed.) Citation

Spring, H. M. "Eliminating Damp Coal Difficulties." Power Plant Engineering. 37 (1933): 145.

MLA (9th ed.) Citation

Spring, H. M. "Eliminating Damp Coal Difficulties." Power Plant Engineering., vol. 37, 1933, p. 145.