{"source":"book","style":"apa","contributors": [{"function":"author","last":"Pollard","first":"Michael"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Johann Gutenberg : master of modern printing","publisher":"Blackbirch Press","city":"Woodbridge, Conn.","year":"2001"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"45320665","isbn":"1567113354 9781567113358"}