{"source":"book","style":"apa","contributors": [{"function":"author","last":"Holt","first":"John","middle":"Caldwell,"},{"function":"author","last":"Sheffer","first":"Susannah"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Selected letters of John Holt","year":"1990"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"21328733","isbn":"0814205445 9780814205440 0814205232 9780814205235"}