http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Concrete armor units for protection against wave attack
report of ad hoc committee on artificial armor units for coastal structures
39 pages, 41 unnumbered pages : illustrations ; 27 cm.
Sponsored by Office, Chief of Engineers, U.S. Army.
Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; H-74-2