APA (7th ed.) Citation

ScienceDirect (Online service), Culver, D. C., & White, W. B. (2012). Encyclopedia of caves (2nd ed.). Elsevier/Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), David C. Culver, and William B. White. Encyclopedia of Caves. 2nd ed. Waltham, MA: Elsevier/Academic Press, 2012.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Encyclopedia of Caves. 2nd ed. Elsevier/Academic Press, 2012.