United States. Department of State & ProQuest (Firm). (1892). [Letter to Secretary of State on Columbian Historical Exposition at Madrid.]. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of State and ProQuest (Firm). [Letter to Secretary of State on Columbian Historical Exposition at Madrid.]. Washington: [publisher not identified], 1892.
MLA (9th ed.) CitationUnited States. Department of State and ProQuest (Firm). [Letter to Secretary of State on Columbian Historical Exposition at Madrid.]. [publisher not identified], 1892.
Warning: These citations may not always be 100% accurate.