APA (7th ed.) Citation

Roush, T., Maturilli, A., Helbert, J., & Mannstein, H. (2012). Optical Constants of Eyjafjallajökull Volcanic Ash: Analogs for Mars.

Chicago Style (17th ed.) Citation

Roush, Ted, Alessandro Maturilli, Joern Helbert, and Hermann Mannstein. Optical Constants of Eyjafjallajökull Volcanic Ash: Analogs for Mars. 2012.

MLA (9th ed.) Citation

Roush, Ted, et al. Optical Constants of Eyjafjallajökull Volcanic Ash: Analogs for Mars. 2012.