APA (7th ed.) Citation

Hallam, A., & Wignall, P. B. (1997). Mass extinctions and their aftermath. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Hallam, Anthony, and Paul B. Wignall. Mass Extinctions and Their Aftermath. Oxford: Oxford Univ. Press, 1997.

MLA (9th ed.) Citation

Hallam, Anthony, and Paul B. Wignall. Mass Extinctions and Their Aftermath. Oxford Univ. Press, 1997.

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