APA (7th ed.) Citation

United States. Bureau of Land Management. (2016). Imperial Sand Dunes Recreation Area ([Revised 2016].). U.S. Department of the Interior, Bureau of Land Management.

Chicago Style (17th ed.) Citation

United States. Bureau of Land Management. Imperial Sand Dunes Recreation Area. [Revised 2016]. [El Centro, Calif.]: U.S. Department of the Interior, Bureau of Land Management, 2016.

MLA (9th ed.) Citation

United States. Bureau of Land Management. Imperial Sand Dunes Recreation Area. [Revised 2016]. U.S. Department of the Interior, Bureau of Land Management, 2016.