APA (7th ed.) Citation

Geological Society of London, Barber, A. J., Crow, M. J., & Milsom, J. (2005). Sumatra: Geology, resources and tectonic evolution. Geological Society.

Chicago Style (17th ed.) Citation

Geological Society of London, A. J. Barber, M. J. Crow, and John Milsom. Sumatra: Geology, Resources and Tectonic Evolution. London: Geological Society, 2005.

MLA (9th ed.) Citation

Geological Society of London, et al. Sumatra: Geology, Resources and Tectonic Evolution. Geological Society, 2005.

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