APA (7th ed.) Citation

Slezakova, K., Pereira, M. C., & Alvim-Ferraz, M. C. M. (2004). PM2.5 and PM10 Concentrations in the North of Portugal.

Chicago Style (17th ed.) Citation

Slezakova, K., M. C. Pereira, and M. C. M. Alvim-Ferraz. PM2.5 and PM10 Concentrations in the North of Portugal. 2004.

MLA (8th ed.) Citation

Slezakova, K., et al. PM2.5 and PM10 Concentrations in the North of Portugal. 2004.