APA (7th ed.) Citation

Salvo, A., Brito, J., Artaxo, P., & Geiger, F. M. (2017). Reduced ultrafine particle levels in São Paulo’s atmosphere during shifts from gasoline to ethanol use. Nature Portfolio.

Chicago Style (17th ed.) Citation

Salvo, Alberto, Joel Brito, Paulo Artaxo, and Franz M. Geiger. Reduced Ultrafine Particle Levels in São Paulo’s Atmosphere During Shifts from Gasoline to Ethanol Use. Nature Portfolio, 2017.

MLA (8th ed.) Citation

Salvo, Alberto, et al. Reduced Ultrafine Particle Levels in São Paulo’s Atmosphere During Shifts from Gasoline to Ethanol Use. Nature Portfolio, 2017.

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