{"source":"book","style":"apa","contributors": [{"function":"author","last":"Cram","first":"Ralph","middle":"Adams,"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Walled towns,","publisher":"Marshall Jones Company","city":"Boston","year":"1919"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"4292813"}