Works Cited

Groombridge, B and Jenkins, MD (2000). Global Biodiversity: Earths Living Resources in the 21^st Century. UNEP-World Conservation Monitoring Center. World Conservation Press. Cambridge, UK.

Groombridge, B and Jenkins, MD (2002). World Atlas of Biodiversity. UNEP-World Conservation Monitoring Center. University of California Press. Berkley, USA.

Vandermeer, John. (1995). The Ecological Basis of Alternative Agriculture. Annual Review of Ecology and Systematics 26: 201-224.

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