American Universities Field Staff. (1955). Reports: West Africa series. [s.n.].
芝加哥风格引文American Universities Field Staff. Reports: West Africa Series. New York: [s.n.], 1955.
MLA引文American Universities Field Staff. Reports: West Africa Series. [s.n.], 1955.
警告：这些引文格式不一定是100％准确.