United States. Hydrographic Office. (1932). Supplement to Hydrographic Office Publication No. 147, British Islands pilot: Vol. IV. Corrections and additions from Notices to Mariners and other sources from date of publication (June 20, 1925) to Jan. 1, 1932. GPO.
Chicago Style (17th ed.) CitationUnited States. Hydrographic Office. Supplement to Hydrographic Office Publication No. 147, British Islands Pilot: Vol. IV. Corrections and Additions from Notices to Mariners and Other Sources from Date of Publication (June 20, 1925) to Jan. 1, 1932. [Washington]: GPO, 1932.
MLA (9th ed.) CitationUnited States. Hydrographic Office. Supplement to Hydrographic Office Publication No. 147, British Islands Pilot: Vol. IV. Corrections and Additions from Notices to Mariners and Other Sources from Date of Publication (June 20, 1925) to Jan. 1, 1932. GPO, 1932.