United States. Congress. House. Committee on Rivers and Harbors & ProQuest (Firm). (1906). Portland Harbor, Maine. Letter from the Secretary of War, transmitting, with a letter from the Chief of Engineers, a report of examination of Portland Harbor, Maine. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Rivers and Harbors and ProQuest (Firm). Portland Harbor, Maine. Letter from the Secretary of War, Transmitting, with a Letter from the Chief of Engineers, a Report of Examination of Portland Harbor, Maine. Washington: [publisher not identified], 1906.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Rivers and Harbors and ProQuest (Firm). Portland Harbor, Maine. Letter from the Secretary of War, Transmitting, with a Letter from the Chief of Engineers, a Report of Examination of Portland Harbor, Maine. [publisher not identified], 1906.