Ancestry.com. Mugnano, Napoli, Italy, Comune Civil Registration Records, 1810-1929 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2014.Original data: Salt Lake City, Utah: FamilySearch, 2013.
This database includes civil registration records of births, marriages and deaths in the town of Mugnano. These registration records also include residency records.
You can learn more about this collection at the FamilySearch website.