APA (7th ed.) Citation

Portugal & United States. (2015). Education: Agreement between the United States of America and Portugal signed at Lisbon, February 11, 2015. United States Department of State.

Chicago Style (17th ed.) Citation

Portugal and United States. Education: Agreement Between the United States of America and Portugal Signed at Lisbon, February 11, 2015. [Washington, D.C.]: United States Department of State, 2015.

MLA (9th ed.) Citation

Portugal and United States. Education: Agreement Between the United States of America and Portugal Signed at Lisbon, February 11, 2015. United States Department of State, 2015.