Huston, M. 1996. Wilson, E.O. 1992. The great extinctions . Chapter 3 in The Diversity of Life , Norton, New York. Wilson, E.O. 1992.
Biodiversity reaches the peak .
Chapter 10 in The Diversity of Life , Norton, New York. Wilson, E.O. 1992. The unexplored biosphere . Chapter 8 in The Diversity of Life , Norton, New York. Cunningham and Saigo.