APA (7th ed.) Citation

O'Rourke, R. (1990). Seawolf or SSN-21 Nuclear-powered attack submarine. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

O'Rourke, Ronald. Seawolf or SSN-21 Nuclear-powered Attack Submarine. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1990.

MLA (9th ed.) Citation

O'Rourke, Ronald. Seawolf or SSN-21 Nuclear-powered Attack Submarine. Congressional Research Service, Library of Congress, 1990.