{"isbn_13": ["9789024717088"], "physical_format": "Paperback", "subtitle": "a Bibliographic Essay (Research Group for European Migration Problems)", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "languages": [{"key": "/l/eng"}], "publishers": ["Springer"], "number_of_pages": 74, "id": 12300730, "edition_name": "1 edition", "isbn_10": ["9024717086"], "publish_date": "February 28, 1975", "key": "/b/OL9087434M", "authors": [{"key": "/a/OL684837A"}], "title": "The Sociology of Return: Migration", "type": {"key": "/type/edition"}, "subjects": ["Bibliographies & Indexes", "History & Theory - General", "History", "Political Science / History & Theory", "Reference", "Return migration"], "revision": 1}