APA引文

(1930). Official United States Tourist Service Highway Map of Washington. United States Tourist Service.

Chicago Style (17th ed.) Citation

Official United States Tourist Service Highway Map of Washington. [S.I.]: United States Tourist Service, 1930.

MLA引文

Official United States Tourist Service Highway Map of Washington. United States Tourist Service, 1930.

警告：這些引文格式不一定是100％准確.