APA (7th ed.) Citation

Hawk, C. A. (1944). What 500 installations have revealed about radiant heating. Heating/Piping/Air Conditioning., 16, 28.

Chicago Style (17th ed.) Citation

Hawk, C. A. "What 500 Installations Have Revealed About Radiant Heating." Heating/Piping/Air Conditioning. 16 (1944): 28.

MLA (9th ed.) Citation

Hawk, C. A. "What 500 Installations Have Revealed About Radiant Heating." Heating/Piping/Air Conditioning., vol. 16, 1944, p. 28.