United States Security Agreements and Commitments Abroad. (1971). Hearings before the Subcommittee on United States Security Agreements and Commitments Abroad of the Committee on Foreign Relations United States Senate ninety-first Congress. U.S. Government Print.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)United States Security Agreements and Commitments Abroad. Hearings Before the Subcommittee on United States Security Agreements and Commitments Abroad of the Committee on Foreign Relations United States Senate Ninety-first Congress. Washington, D.C: U.S. Government Print, 1971.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)United States Security Agreements and Commitments Abroad. Hearings Before the Subcommittee on United States Security Agreements and Commitments Abroad of the Committee on Foreign Relations United States Senate Ninety-first Congress. U.S. Government Print, 1971.