{
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    "nstc": null,
    "title": "Crisis of the twelfth century",
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    "description": "Medieval civilization came of age in thunderous events like the Norman Conquest and the First Crusade. Power fell into the hands of men who imposed coercive new lordships in quest of nobility. Rethinking a familiar history, Thomas Bisson explores the circumstances that impelled knights, emperors, nobles, and churchmen to infuse lordship with social",
    "imprint": null,
    "language_code": "eng",
    "original_language_code": null,
    "page_count": 720,
    "duration_seconds": null,
    "publication_date_first": "2015-10-21",
    "publication_date_latest": "2015-10-21",
    "cover_url": null,
    "editions": [
        {
            "isbn": "9780691169767",
            "product_form": "BC"
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    "created_at": "2025-09-19T13:11:53+00:00",
    "updated_at": "2025-10-31T00:23:24+00:00",
    "publisher": {
        "id": 4186,
        "slug": "university-press-gro",
        "name": "University Press Gro",
        "created_at": "2025-09-19T13:08:37+00:00",
        "updated_at": "2025-09-19T15:09:32+00:00"
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    "contributors": [],
    "genres": [],
    "subjects": [
        {
            "scheme_identifier": "32",
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            "main_subject": false,
            "subject_code": "684",
            "created_at": "2025-09-19T13:11:53+00:00",
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}