Reference Page

"Desert Horned Viper." WhoZoo. 15 June 2006 .

"Deserts of the World." Tropix Themes. 15 June 2006 .

"Dry Desert." Desert. 15 June 2006 .

"Hot and Dry Deserts." Desert Maps. 15 June 2006 .

"Prickly Pears." Desert Vegetation. 15 June 2006 .

"Recovery and Restoration Potential." Human-Induced Changes in the Mojave and Colorado Desert Ecosystems. 15 June 2006 .

"Sand Viper Page." Desert Scour. 15 June 2006 .

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