"bibLevels": {

      "archives"    : "7",
      "monograph"   : "m",
      "serial"      : "s",
      "-"           : "-",
      "serCompPt"   : "b",
      "collection"  : "c",
      "monoCompPt"  : "a",
      "subunit"     : "d",
      "intgrtngRes" : "i"
    }