Wolf, A. (1970). Foreign policy: Intervention, involvement, or isolationn. Prentice-Hall.
芝加哥风格引文Wolf, Alvin. Foreign Policy: Intervention, Involvement, or Isolationn. Englewood Cliffs, N. J: Prentice-Hall, 1970.
MLA引文Wolf, Alvin. Foreign Policy: Intervention, Involvement, or Isolationn. Prentice-Hall, 1970.
警告：这些引文格式不一定是100％准确.