APA Citation

(1972). Centenary business firms in greater Philadelphia ([3rd ed. with additions to 1972 or 1973.). Philadelphia, Pa.: Chamber of Commerce of Greater Philadelphia.

Chicago Style Citation

Centenary Business Firms in Greater Philadelphia. [3rd ed. with additions to 1972 or 1973. Philadelphia, Pa.: Chamber of Commerce of Greater Philadelphia, 1972.

MLA Citation

Centenary Business Firms in Greater Philadelphia. [3rd ed. with additions to 1972 or 1973. Philadelphia, Pa.: Chamber of Commerce of Greater Philadelphia, 1972.

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