http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Also includes summary of origin and mission of Hydrographic Office, description of selected port facilities, and list of stations sending submarine sound signals.
The reverse side of some charts contain special features, as noted below.
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2014. digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.