http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Biennial register of all officers and agents in service of U.S.; with names, force, and condition, of all ships and vessels belonging to U.S
Register is popularly referred to as the Blue Book.
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2014. digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.