{"source":"book","style":"apa","contributors": [{"function":"author","last":"Gilbert","first":"John"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"A history of wonderful inventions","publisher":"Chapman and Hall","city":"London","year":"1849"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"221505134"}