{"source":"book","style":"apa","contributors": [{"function":"author","last":"Seagren","first":"Eric"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Secure your network for free : using Nmap, Wireshark, Snort, Nessus, and MRGT","publisher":"Syngress ; Elsevier Science [distributor]","city":"Rockland, Mass.; Oxford","year":"2006"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"77541326","isbn":"9781597491235 1597491233"}