APA (7th ed.) Citation

Heitshusen, V. (2017). Party leaders in the United States Congress, 1789-2017. Congressional Research Service.

Chicago Style (17th ed.) Citation

Heitshusen, Valerie. Party Leaders in the United States Congress, 1789-2017. [Washington, District of Columbia]: Congressional Research Service, 2017.

MLA (9th ed.) Citation

Heitshusen, Valerie. Party Leaders in the United States Congress, 1789-2017. Congressional Research Service, 2017.

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