District of Columbia & ProQuest (Firm). (1894). [Letter from Commissioners of District of Columbia on underground conduits for electric wires.]. [publisher not identified].
Chicago Style (17th ed.) CitationDistrict of Columbia and ProQuest (Firm). [Letter from Commissioners of District of Columbia on Underground Conduits for Electric Wires.]. Washington: [publisher not identified], 1894.
MLA (9th ed.) CitationDistrict of Columbia and ProQuest (Firm). [Letter from Commissioners of District of Columbia on Underground Conduits for Electric Wires.]. [publisher not identified], 1894.
Warning: These citations may not always be 100% accurate.