APA (7th ed.) Citation

Keller, G., & Kerr, A. C. (2014). Volcanism, impacts, and mass extinctions: Causes and effects. Geological Society of America.

Chicago Style (17th ed.) Citation

Keller, Gerta, and Andrew C. Kerr. Volcanism, Impacts, and Mass Extinctions: Causes and Effects. Boulder, Colorado: Geological Society of America, 2014.

MLA (9th ed.) Citation

Keller, Gerta, and Andrew C. Kerr. Volcanism, Impacts, and Mass Extinctions: Causes and Effects. Geological Society of America, 2014.