APA (7th ed.) Citation

Koitz, D. (1990). Social security: Changes in the self-employment tax for 1990. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Koitz, David. Social Security: Changes in the Self-employment Tax for 1990. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1990.

MLA (9th ed.) Citation

Koitz, David. Social Security: Changes in the Self-employment Tax for 1990. Congressional Research Service, Library of Congress, 1990.