Library of Congress. Federal Research Division, Worden, R. L., & Savada, A. M. (1991). Mongolia: A country study (2nd ed.). For sale by the Supt. of Docs., U.S. G.P.O..
Chicago Style (17th ed.) CitationLibrary of Congress. Federal Research Division, Robert L. Worden, and Andrea Matles Savada. Mongolia: A Country Study. 2nd ed. Washington, D.C.: For sale by the Supt. of Docs., U.S. G.P.O., 1991.
MLA引文Library of Congress. Federal Research Division, et al. Mongolia: A Country Study. 2nd ed. For sale by the Supt. of Docs., U.S. G.P.O., 1991.
警告:這些引文格式不一定是100%准確.