APA (7th ed.) Citation

Canada & United States. (2019). Transportation: Preclearance : agreement between the United States of America and Canada, signed at Washington, March 16, 2015; entered into force August 15, 2019. U.S. Dept. of State.

Chicago Style (17th ed.) Citation

Canada and United States. Transportation: Preclearance : Agreement Between the United States of America and Canada, Signed at Washington, March 16, 2015; Entered into Force August 15, 2019. [Washington, D.C.]: U.S. Dept. of State, 2019.

MLA (9th ed.) Citation

Canada and United States. Transportation: Preclearance : Agreement Between the United States of America and Canada, Signed at Washington, March 16, 2015; Entered into Force August 15, 2019. U.S. Dept. of State, 2019.