View source for Pietas

==References==
===Citations===
{{Reflist|30em}}

===Bibliography===
* {{citation |last= |first= |editor=Hugh Chisholm |display-editors=0 |contribution=[[:s:1911_Encyclopædia_Britannica/Pietas|Pietas]] |title=[[:s:1911 Encyclopædia Britannica|''Encyclopaedia Britannica'']] |edition=11th |date=1911 |volume=[[:s:1911_Encyclopædia_Britannica/Vol_21_PAYN_to_POLKA|XXI]] |publisher=Encyclopaedia Britannica |location=New York |ref=CITEREFEnc._Brit.1911 |page=592 }}.