APA (7th ed.) Citation

Great Britain. Energy Efficiency Office. (1993). Degree days / Energy Efficiency Office (Rev. ed.). Energy Efficiency Office.

Chicago Style (17th ed.) Citation

Great Britain. Energy Efficiency Office. Degree Days / Energy Efficiency Office. Rev. ed. London: Energy Efficiency Office, 1993.

MLA (9th ed.) Citation

Great Britain. Energy Efficiency Office. Degree Days / Energy Efficiency Office. Rev. ed. Energy Efficiency Office, 1993.

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