APA引文

Washington State Planning Council & United States. National Park Service. (1939). A study of parks, parkways and recreational areas, state of Washington.

Chicago Style (17th ed.) Citation

Washington State Planning Council and United States. National Park Service. A Study of Parks, Parkways and Recreational Areas, State of Washington. [Olympia], 1939.

MLA引文

Washington State Planning Council and United States. National Park Service. A Study of Parks, Parkways and Recreational Areas, State of Washington. 1939.

警告：這些引文格式不一定是100％准確.