Cita APA (7th ed.)

U.S. Military Academy, West Point. Dept. of Social Science, U.S. Military Academy, West Point. Dept. of Economics, Government, and History. The governments of the major foreign powers, & Beukema, H. (1949). Contemporary foreign governments (Rev. ed.). Rinehart.

Cita Chicago (17th ed.)

U.S. Military Academy, West Point. Dept. of Social Science, West Point. Dept. of Economics U.S. Military Academy, i Herman Beukema. Contemporary Foreign Governments. Rev. ed. New York: Rinehart, 1949.

Cita MLA (9th ed.)

U.S. Military Academy, West Point. Dept. of Social Science, et al. Contemporary Foreign Governments. Rev. ed. Rinehart, 1949.