rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Plutonium-beryllium neutron sources
  type of resource: text
  origin info:
    place:
      place term: ss.
    place:
      place term: Pennsylvania
    publisher: Apollo
    date issued: s.f
    date issued: ####
    issuance: monographic
  language:
    language term: en
  physical description:
    extent: 32 p.
  subject:
    topic: NEUTRONES -FUENTES
  record info:
    record creation date: 170703