APA (7th ed.) Citation

Oliveira, A. C., & Afonso, C. (2007). Solar Refrigeration, or Cooling With the Sun's Heat.

Chicago Style (17th ed.) Citation

Oliveira, Armando C., and Clito Afonso. Solar Refrigeration, or Cooling With the Sun's Heat. 2007.

MLA (8th ed.) Citation

Oliveira, Armando C., and Clito Afonso. Solar Refrigeration, or Cooling With the Sun's Heat. 2007.

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