APA Citation

(1973). Socio-economic characteristics, 1960 & 1970, Philadelphia census tracts. Philadelphia: The Commission.

Chicago Style Citation

Socio-economic Characteristics, 1960 & 1970, Philadelphia Census Tracts. Philadelphia: The Commission, 1973.

MLA Citation

Socio-economic Characteristics, 1960 & 1970, Philadelphia Census Tracts. Philadelphia: The Commission, 1973.

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