WENNER, M. W. (1991). The Yemen Arab Republic: Development and change in anancient land. Westview.
芝加哥风格引文WENNER, Manfred W. The Yemen Arab Republic: Development and Change in Anancient Land. Boulder: Westview, 1991.
MLA引文WENNER, Manfred W. The Yemen Arab Republic: Development and Change in Anancient Land. Westview, 1991.
警告：这些引文格式不一定是100％准确.