Philadelphia Social History Project : Pennsylvania Abolition Society and Society of Friends Manuscript Census Schedules, 1838, 1847, 1856

MLA

Hershberg, Theodore. and Inter-university Consortium for Political and Social Research. Philadelphia Social History Project : Pennsylvania Abolition Society and Society of Friends Manuscript Census Schedules, 1838, 1847, 1856. 2009-02-26. Ann Arbor, Mich. : Inter-university Consortium for Political and Social Research [distributor], 2009.

APA

Hershberg, T. & Inter-university Consortium for Political and Social Research. (2009). Philadelphia Social History Project : Pennsylvania Abolition Society and Society of Friends Manuscript Census Schedules, 1838, 1847, 1856. 2009-02-26. Ann Arbor, Mich. : Inter-university Consortium for Political and Social Research [distributor].

Chicago

Hershberg, Theodore. and Inter-university Consortium for Political and Social Research. Philadelphia Social History Project : Pennsylvania Abolition Society and Society of Friends Manuscript Census Schedules, 1838, 1847, 1856. 2009-02-26. Ann Arbor, Mich. : Inter-university Consortium for Political and Social Research [distributor], 2009.