APA (7th ed.) Citation

Portugal & United States. Department of State. (2001). Maintenance: Agreement between the United States of America and Portugal signed at Lisbon, May 30, 2000. U.S. Dept. of State.

Chicago Style (17th ed.) Citation

Portugal and United States. Department of State. Maintenance: Agreement Between the United States of America and Portugal Signed at Lisbon, May 30, 2000. [Washington, D.C.]: U.S. Dept. of State, 2001.

MLA (9th ed.) Citation

Portugal and United States. Department of State. Maintenance: Agreement Between the United States of America and Portugal Signed at Lisbon, May 30, 2000. U.S. Dept. of State, 2001.