APA Citation

(1978). Heads of families index, 1850 Federal census, county of Philadelphia (exclusive of the city of Philadelphia). Philadelphia, PA: The Genealogical Society of Pennsylvania.

Chicago Style Citation

Heads of Families Index, 1850 Federal Census, County of Philadelphia (exclusive of the City of Philadelphia). Philadelphia, PA: The Genealogical Society of Pennsylvania, 1978.

MLA Citation

Heads of Families Index, 1850 Federal Census, County of Philadelphia (exclusive of the City of Philadelphia). Philadelphia, PA: The Genealogical Society of Pennsylvania, 1978.

Warning: These citations may not always be 100% accurate.