APA (7th ed.) Citation

Great Britain. Foreign Office. (1997). Foreign Office files--United States of America. Adam Matthew Publications.

Chicago Style (17th ed.) Citation

Great Britain. Foreign Office. Foreign Office Files--United States of America. Marlborough, Wiltshire, England: Adam Matthew Publications, 1997.

MLA (8th ed.) Citation

Great Britain. Foreign Office. Foreign Office Files--United States of America. Adam Matthew Publications, 1997.