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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Bury, R. Bruce. - Busack, Stephen Dana. - Luckenbach, Roger A. (Roger Andrew) - U.S. Fish and Wildlife Service
    Publication info: Washington, D.C. , U.S. Department of the Interior, Fish and Wildlife Service, 1977
    Holding Institution: Bureau of Land Management
    Subjects: California  Desert ecology  Effect of off-road vehicles on  Environmental aspects  Off-road vehicles  Vertebrates  
  2. By: Bondello, Michael C. - Brattstrom, Bayard H. - United States. Bureau of Land Management.
    Publication info: [Calif.], [U.S. Department of the Interior, Bureau of Land Management], 1979
    Holding Institution: Bureau of Land Management
    Subjects: California  Deserts  Effect of noise on  Effect of off-road vehicles on  Kangaroo rats  Lizards  Noise  Off-road vehicles  Toads  
  3. By: Wright, Gavin R. - Grant, Tyler J. - United States. Bureau of Land Management. - United States. Bureau of Land Management. El Centro Field Office.
    Publication info: [El Centro, California], U.S. Department of the Interior, Bureau of Land Management, 2003
    Holding Institution: Bureau of Land Management
    Subjects: California  Effect of off-road vehicles on  Horned toads  Imperial County  Imperial Sand Dunes Recreation Area  Imperial Sand Dunes Recreation Area (Calif.)  Lizards  Phrynosomatidae  Population  San Diego County