http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
study of vapor barrier materials for use with slab-on-ground construction and as ground cover in crawl spaces
conducted for the Federal Housing Administration under contract no. HA-fh-646 (amendment no. 1) May 10, 1956. Report edited by William S. Brown, staff architect.
Publication (National Research Council (U.S.)) ; no. 445