APA (7th ed.) Citation

Overgaard, R. (1983). Energy conservation retrofit. Heating/Piping/Air Conditioning., 55, 65.

Chicago Style (17th ed.) Citation

Overgaard, R. "Energy Conservation Retrofit." Heating/Piping/Air Conditioning. 55 (1983): 65.

MLA (9th ed.) Citation

Overgaard, R. "Energy Conservation Retrofit." Heating/Piping/Air Conditioning., vol. 55, 1983, p. 65.

Warning: These citations may not always be 100% accurate.