U.S. Fish and Wildlife Service. Region 6. Division of Refuge Planning. (2011). Environmental assessment and draft land protection plan: Proposed Dakota Grassland Conservation Area, North Dakota, South Dakota. Region 6, Mountain-Prairie Region, Division of Refuge Planning.
Chicago Style (17th ed.) CitationU.S. Fish and Wildlife Service. Region 6. Division of Refuge Planning. Environmental Assessment and Draft Land Protection Plan: Proposed Dakota Grassland Conservation Area, North Dakota, South Dakota. [Lakewood, Colo.]: Region 6, Mountain-Prairie Region, Division of Refuge Planning, 2011.
MLA (9th ed.) CitationU.S. Fish and Wildlife Service. Region 6. Division of Refuge Planning. Environmental Assessment and Draft Land Protection Plan: Proposed Dakota Grassland Conservation Area, North Dakota, South Dakota. Region 6, Mountain-Prairie Region, Division of Refuge Planning, 2011.