http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
by Walter H. B. Smith, and Supplement: post-war developments, by Kent Bellah.
Revised and enl. edition of the author's The N.R.A. book of small arms, volume 1, Pistols and revolvers, published in 1946.