APA (7th ed.) Citation

Harding, L. A. (1929). Power from process and space heating steam. Heating/Piping/Air Conditioning., 1, 569.

Chicago Style (17th ed.) Citation

Harding, L. A. "Power from Process and Space Heating Steam." Heating/Piping/Air Conditioning. 1 (1929): 569.

MLA (9th ed.) Citation

Harding, L. A. "Power from Process and Space Heating Steam." Heating/Piping/Air Conditioning., vol. 1, 1929, p. 569.