APA引文

Washington State Planning Council & United States. National Park Service. (1941). A study of parks, parkways, and recreational areas.

Chicago Style (17th ed.) Citation

Washington State Planning Council and United States. National Park Service. A Study of Parks, Parkways, and Recreational Areas. [Olympia, 1941.

MLA引文

Washington State Planning Council and United States. National Park Service. A Study of Parks, Parkways, and Recreational Areas. 1941.

警告：這些引文格式不一定是100％准確.