Rules to prevent collisions of vessels.
By: Department of commerce. Office of the secretary.
Edition: [2d ed.]
Series: Department circular,; no. 230, 2d ed.
Published: 1917
Place of publication: [Washington
Language: eng
Number of pages: 17
Subjects: Collisions at sea.
Notes: Supersedes Department circular no. 158, November 21, 1907.
International rules and Inland rules in parallel columns.