APA (7th ed.) Citation

Tasker, C. (1949). Summary of methods for sterilizing air. Heating/Piping/Air Conditioning., 21, 95.

Chicago Style (17th ed.) Citation

Tasker, C. "Summary of Methods for Sterilizing Air." Heating/Piping/Air Conditioning. 21 (1949): 95.

MLA (9th ed.) Citation

Tasker, C. "Summary of Methods for Sterilizing Air." Heating/Piping/Air Conditioning., vol. 21, 1949, p. 95.