U.S. Fish and Wildlife Service. Division of Endangered Species. (2000). The petition process: For requests to list a species as threatened or endangered under the Endangered Species Act. U.S. Fish and Wildlife Service, Division of Endangered Species.
Chicago Style (17th ed.) CitationU.S. Fish and Wildlife Service. Division of Endangered Species. The Petition Process: For Requests to List a Species As Threatened or Endangered Under the Endangered Species Act. [Washington, D.C.]: U.S. Fish and Wildlife Service, Division of Endangered Species, 2000.
MLA (8th ed.) CitationU.S. Fish and Wildlife Service. Division of Endangered Species. The Petition Process: For Requests to List a Species As Threatened or Endangered Under the Endangered Species Act. U.S. Fish and Wildlife Service, Division of Endangered Species, 2000.