APA (7th ed.) Citation

Speed, R. C., Speed, C., & Sedlock, R. L. (2012). Geology and geomorphology of Barbados: A companion text to maps with accompanying cross sections. Geological Society of America.

Chicago Style (17th ed.) Citation

Speed, Robert C., Christine Speed, and Richard L. Sedlock. Geology and Geomorphology of Barbados: A Companion Text to Maps with Accompanying Cross Sections. Boulder, Colo.: Geological Society of America, 2012.

MLA (9th ed.) Citation

Speed, Robert C., et al. Geology and Geomorphology of Barbados: A Companion Text to Maps with Accompanying Cross Sections. Geological Society of America, 2012.