{"physical_format": "[microform] /", "pagination": "3 leaves, [3]-201 p., 5 leaves of plates ;", "title": "Pioneers of El Dorado", "last_modified": {"type": "/type/datetime", "value": "2008-09-19 22:52:38.372288"}, "publishers": ["C.E. Upton"], "lccn": ["87792388"], "series": ["Western Americana, 1550-1900 -- reel 575, no. 5921."], "notes": {"type": "/type/text", "value": "Master microform held by: ResP.\n\nHowes, U.S.IANA, no. U.25.\n\nMicrofilm. Woodbridge, Conn. : Research Publications, 1975. 1 reel ; 35 mm. (Western Americana ; reel 575, no. 5921) "}, "number_of_pages": 201, "id": 21834421, "languages": [{"key": "/l/eng"}], "lc_classifications": ["F868.E3 U8"], "publish_date": "1906", "publish_country": "cau", "key": "/b/OL15438118M", "authors": [{"key": "/a/OL2519856A"}], "by_statement": "By Charles Elmer Upton ...", "publish_places": ["Placerville, Cal"], "type": {"key": "/type/edition"}, "subjects": ["California -- Gold discoveries.", "El Dorado County (Calif.) -- Biography."], "revision": 1}