APA (7th ed.) Citation

United States. Congress. House & ProQuest (Firm). (1990). Black Americans in Congress, 1870-1989. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Congress. House and ProQuest (Firm). Black Americans in Congress, 1870-1989. Washington: [publisher not identified], 1990.

MLA (9th ed.) Citation

United States. Congress. House and ProQuest (Firm). Black Americans in Congress, 1870-1989. [publisher not identified], 1990.

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