APA (7th ed.) Citation

Não informado. (2017). Earthquakes & Volcanoes. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Não informado. Earthquakes & Volcanoes. Reston, Va: U.S. Geological Survey, 2017.

MLA (8th ed.) Citation

Não informado. Earthquakes & Volcanoes. U.S. Geological Survey, 2017.

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