APA (7th ed.) Citation

Geographic, N. (2009). Engenharia Ecológica Energia Geotérmica. National Geographic.

Chicago Style (17th ed.) Citation

Geographic, National. Engenharia Ecológica Energia Geotérmica. National Geographic, 2009.

MLA (8th ed.) Citation

Geographic, National. Engenharia Ecológica Energia Geotérmica. National Geographic, 2009.

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