ProQuest (Firm). (1921). [Development of Great Falls of Potomac for water power and increase of water supply for District of Columbia.]. [publisher not identified].
Chicago Style (17th ed.) CitationProQuest (Firm). [Development of Great Falls of Potomac for Water Power and Increase of Water Supply for District of Columbia.]. Washington: [publisher not identified], 1921.
MLA (9th ed.) CitationProQuest (Firm). [Development of Great Falls of Potomac for Water Power and Increase of Water Supply for District of Columbia.]. [publisher not identified], 1921.
Warning: These citations may not always be 100% accurate.