Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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

Attention : ces citations peuvent ne pas être correctes à 100%.