United States. Congress. Senate. Committee on Foreign Relations. Subcommittee on European Affairs & Library of Congress. Congressional Research Service. (1989). NATO at 40. U.S. G.P.O. : For sale by Supt. of Docs., U.S. G.P.O., Congressional Sales Office.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Foreign Relations. Subcommittee on European Affairs and Library of Congress. Congressional Research Service. NATO at 40. Washington: U.S. G.P.O. : For sale by Supt. of Docs., U.S. G.P.O., Congressional Sales Office, 1989.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Foreign Relations. Subcommittee on European Affairs and Library of Congress. Congressional Research Service. NATO at 40. U.S. G.P.O. : For sale by Supt. of Docs., U.S. G.P.O., Congressional Sales Office, 1989.