{"source":"book","style":"apa","contributors": [{"function":"author","last":"Castro","first":"Jose","middle":"Maria,"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"3 estudios para violoncelo y piano","year":"1946"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"10126471"}