{
  "book": {
    "authors": [
      "Simon Singh"
    ],
    "authorship": "known",
    "pages": 416,
    "publisher": "HarperCollins Publishers Limited",
    "subtitle": "The Secret History of Codes and Code-Breaking",
    "title": "Code Book"
  },
  "cached": true,
  "citations": {
    "apa": "Singh, S. (2010). Code Book: The Secret History of Codes and Code-Breaking. HarperCollins Publishers Limited.",
    "bibtex": "@book{isbn9780007378302,\n  title = {Code Book: The Secret History of Codes and Code-Breaking},\n  author = {{Simon Singh}},\n  publisher = {HarperCollins Publishers Limited},\n  year = {2010},\n  language = {eng},\n  isbn = {9780007378302},\n}",
    "chicago": "Singh, Simon. Code Book: The Secret History of Codes and Code-Breaking. HarperCollins Publishers Limited, 2010.",
    "mla": "Singh, Simon. Code Book: The Secret History of Codes and Code-Breaking. HarperCollins Publishers Limited, 2010.",
    "wp": "{{cite book |title=Code Book: The Secret History of Codes and Code-Breaking |author1=Simon Singh |publisher=HarperCollins Publishers Limited |year=2010 |language=en |isbn=9780007378302}}"
  },
  "consulted": {
    "answered": 1,
    "consulted": 1,
    "not_asked": 0,
    "not_held": 0
  },
  "found": true,
  "isbn": {
    "input": "9780007378302",
    "isbn13": "9780007378302",
    "normalized": "9780007378302",
    "valid": true
  },
  "ok": true,
  "quality": {
    "state": "partial",
    "omissions": [
      {
        "field": "issued",
        "reason": "missing_evidence"
      },
      {
        "field": "responsibility",
        "reason": "unverified_roles"
      }
    ]
  },
  "supported_styles": [
    "mla",
    "apa",
    "chicago",
    "wp",
    "bibtex"
  ]
}