{
   "title": "Preliminary Report on the Mineral Production of Canada",
   "aka": ["Preliminary Report on Mineral Production"],
   "online": "1",
   "first-renewed-issue": "none",
   "first-renewed-issue-source": "cce+database",
   "first-renewed-contribution": "none",
   "first-renewed-contribution-source": "cce+database",
   "additional-note" : "This is a Canadian publication.  Its contents may still be copyrighted even without renewals or copyright notices, if they meet GATT copyright restoration requirements for works first published outside the US. It is published by the Canadian government.",
   "responsibility": {
      "authorized": "Mark Ockerbloom, John, 1966-",
      "contact": "ockerblo@pobox.upenn.edu"
   },
   "acknowledgement":
      "Thanks to Tim Wells for copyright research on this title.",
   "last-updated": "2020-06-03"
}