{
    "query": {
        "category": "Economics",
        "publication_date": "1973-01",
        "nr_of_items": 2
    },
    "items": [
        {
            "title": "Collected Papers",
            "subtitle": null,
            "author": "Lloyd A. Metzler",
            "isbn": "9780674137752",
            "publisher": "Harvard University Press",
            "link_to_publisher": "https:\/\/www.hup.harvard.edu\/books\/9780674137752"
        },
        {
            "title": "The Service Sector in Soviet Economic Growth",
            "subtitle": "A Comparative Study",
            "author": "Gur Ofer",
            "isbn": "9780674801806",
            "publisher": "Harvard University Press",
            "link_to_publisher": "https:\/\/www.hup.harvard.edu\/books\/9780674801806"
        }
    ]
}