{"contributors":[{"last":"Bach","middle":"Sebastian,","first":"Johann","function":"author"},{"last":"Griepenkerl","middle":"Conrad,","first":"Friedrich","function":"author"},{"last":"Roitzsch","middle":"A","first":"F","function":"author"}],"style":"apa","source":"book","book":{"":""},"oclc":"476429252","pubnonperiodical":{"year":"1845","volume":"","publisher":"C.F. Peters","city":"Leipzig","title":"Johann Sebastian Bach's Compositionen für die Orgel. Band 4 Band 4"},"datasource":"http:\/\/www.worldcat.org","pubtype":{"main":"pubnonperiodical"}}