Não informado. Regulatory Announcement. U.S. Fish and Wildlife Service.
Cita Chicago Style (17a ed.)Não informado. Regulatory Announcement. Washington: U.S. Fish and Wildlife Service.
Cita MLA (8a ed.)Não informado. Regulatory Announcement. U.S. Fish and Wildlife Service.
Precaución: Estas citas no son 100% exactas.