{"title": "Grammar spectrum", "subjects": ["English language", "Textbooks for foreign speakers", "Problems, exercises", "Grammar", "English language, grammar", "Study and teaching (Elementary)", "Study and teaching as a second language"], "key": "/works/OL1056969W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL106010A"}}], "type": {"key": "/type/work"}, "covers": [12463228], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-09T20:17:50.618117"}, "last_modified": {"type": "/type/datetime", "value": "2021-12-22T23:04:46.019043"}}