U.S. Dept. of State. (1948). Department of foreign service series 1-. s.n.
Chicago-viite (17. p.)U.S. Dept. of State. Department of Foreign Service Series 1-. S.l: s.n, 1948.
MLA-viite (9. p.)U.S. Dept. of State. Department of Foreign Service Series 1-. s.n, 1948.
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