Biotic communities--Law and legislation--Mexican-American Border Region.; Habitat (Ecology)--Mexican-American Border Region.; Plants--Mexican-American Border Region.; Human ecology--Mexican-American Border Region.; Cultural...
Title from PDF cover (viewed on August 27, 2010).; Preserved in the OCLC Digital Archive. Harvested from http://www.defenders.org/resources/publications/programs_and_policy/habitat_conservation/federal_lands/continental_divide.pdf on Aug. 30, 2010.