Abdel-Wahab, A. R. (1972). Tax policy and problems in a developing economy: A case study of Sudan. s.n.
芝加哥风格引文Abdel-Wahab, Abdel Rahman. Tax Policy and Problems in a Developing Economy: A Case Study of Sudan. Urbana, Ill: s.n, 1972.
MLA引文Abdel-Wahab, Abdel Rahman. Tax Policy and Problems in a Developing Economy: A Case Study of Sudan. s.n, 1972.
警告：这些引文格式不一定是100％准确.