{"source":"book","style":"apa","contributors": [{"function":"author","last":"Cunningham","first":"Walker"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"The keyboard music of John Bull","publisher":"UMI Books on Demand","city":"Ann Arbor, Mich.","year":"2005"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"884013347","isbn":"0835714667 9780835714662"}