APA (7th ed.) Citation

United States. Bureau of Land Management. El Centro Resource Area & United States. Bureau of Land Management. California Desert District. (1987). Recreation area management plan and environmental assessment for the Imperial Sand Dunes. Bureau of Land Management, California Desert District.

Chicago Style (17th ed.) Citation

United States. Bureau of Land Management. El Centro Resource Area and United States. Bureau of Land Management. California Desert District. Recreation Area Management Plan and Environmental Assessment for the Imperial Sand Dunes. Riverside, Calif.: Bureau of Land Management, California Desert District, 1987.

MLA (9th ed.) Citation

United States. Bureau of Land Management. El Centro Resource Area and United States. Bureau of Land Management. California Desert District. Recreation Area Management Plan and Environmental Assessment for the Imperial Sand Dunes. Bureau of Land Management, California Desert District, 1987.