APA (7th ed.) Citation

Ramos, S., Homem, V., Alves, A., & Santos, L. S. (2013). Comparison of different methods to quantify POPs and emergent pollutants using pine needles.

Chicago Style (17th ed.) Citation

Ramos, Sara, Vera Homem, Arminda Alves, and Lúcia Silveira Santos. Comparison of Different Methods to Quantify POPs and Emergent Pollutants Using Pine Needles. 2013.

MLA (8th ed.) Citation

Ramos, Sara, et al. Comparison of Different Methods to Quantify POPs and Emergent Pollutants Using Pine Needles. 2013.