APA (7th ed.) Citation

(1947). Future park system for Washington and its environs. United States. Department of the Interior.

Chicago Style (17th ed.) Citation

Future Park System for Washington and Its Environs. Washington, D.C.: United States. Department of the Interior, 1947.

MLA (9th ed.) Citation

Future Park System for Washington and Its Environs. United States. Department of the Interior, 1947.

Warning: These citations may not always be 100% accurate.