http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Comparative evaluation of visual distress signals
Prepared by Naval Weapons Support Center, Applied Sciences Dept., under grant MIPR Z-70099-5-54369.
Report (United States. Coast Guard. Office of Research and Development) ; no. CG-D-47-76