APA (7th ed.) Citation

Library of Congress. Congressional Research Service & ProQuest (Firm). (1991). Census 1990, Selected References, 1987-1990. [publisher not identified].

Chicago Style (17th ed.) Citation

Library of Congress. Congressional Research Service and ProQuest (Firm). Census 1990, Selected References, 1987-1990. [Place of publication not identified]: [publisher not identified], 1991.

MLA (9th ed.) Citation

Library of Congress. Congressional Research Service and ProQuest (Firm). Census 1990, Selected References, 1987-1990. [publisher not identified], 1991.

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