APA (7 वां संस्करण) प्रशस्ति पत्र

U.S. Dept. of State. (1948). Department of foreign service series 1-. s.n.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

U.S. Dept. of State. Department of Foreign Service Series 1-. S.l: s.n, 1948.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

U.S. Dept. of State. Department of Foreign Service Series 1-. s.n, 1948.