APA (7th ed.) Citation

Heppenheimer, T. A. (2005). Cold comfort: It took half a century for air conditioning to become accepted and decades more for it to become universal.

Chicago Style (17th ed.) Citation

Heppenheimer, T. A. Cold Comfort: It Took Half a Century for Air Conditioning to Become Accepted and Decades More for It to Become Universal. 2005.

MLA (9th ed.) Citation

Heppenheimer, T. A. Cold Comfort: It Took Half a Century for Air Conditioning to Become Accepted and Decades More for It to Become Universal. 2005.