U.S. Dept. of State. (1948). Department of foreign service series 1-. s.n.
Cita Chicago Style (17a ed.)U.S. Dept. of State. Department of Foreign Service Series 1-. S.l: s.n, 1948.
Cita MLA (9a ed.)U.S. Dept. of State. Department of Foreign Service Series 1-. s.n, 1948.
Precaución: Estas citas no son 100% exactas.