United States congressional delegations from Pennsylvania

[2012-12-22]. （原始内容存档于2010-12-25）.  QuickFacts Pennsylvania; UNITED STATES. 2019 Population Estimates. United States Census Bureau, Population Division. February

（原始内容存档于2019-04-29）.  Geographic Boundaries of United States Courts of Appeals and United States District Courts (PDF). US: United States Courts. [2015-05-12]. （原始内容存档于2015-05-14）