{"publishers": ["Encyclopedia Britannica Corporation"], "number_of_pages": 64, "subtitle": "Discover and Understand Our World's Natural Wonders (Britannica Learning Library)", "weight": "1.2 pounds", "covers": [1985834], "physical_format": "Hardcover", "key": "/books/OL9448065M", "authors": [{"key": "/authors/OL6850721A"}], "subjects": ["Science & Nature - Astronomy", "Science & Technology - Astronomy", "Children: Young Adult (Gr. 10-12)", "Children's 9-12 - Science", "Children's Books/Ages 9-12 Science"], "source_records": ["ia:planetearthdisco0000unse"], "title": "Planet Earth", "identifiers": {"goodreads": ["6703230"], "librarything": ["4701129"]}, "languages": [{"key": "/languages/eng"}], "publish_date": "August 2003", "works": [{"key": "/works/OL8232145W"}], "type": {"key": "/type/edition"}, "physical_dimensions": "11 x 8.7 x 0.4 inches", "ocaid": "planetearthdisco0000unse", "isbn_10": ["1593390017"], "isbn_13": ["9781593390013"], "oclc_numbers": ["53357480"], "classifications": {}, "latest_revision": 10, "revision": 10, "created": {"type": "/type/datetime", "value": "2008-04-30T09:38:13.731961"}, "last_modified": {"type": "/type/datetime", "value": "2024-02-13T02:24:09.992982"}}