APA (7th ed.) Citation

Geological Survey (U.S.) & EarthInfo. USGS daily values. EarthInfo.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and EarthInfo. USGS Daily Values. [Boulder, Colo.]: EarthInfo.

MLA (9th ed.) Citation

Geological Survey (U.S.) and EarthInfo. USGS Daily Values. EarthInfo.

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