Davies, S., & West, R. (1982). Pitman business English 1: Clerical. Pitman.
芝加哥风格引文Davies, Susan, 与 Richard West. Pitman Business English 1: Clerical. London: Pitman, 1982.
MLA引文Davies, Susan, 与 Richard West. Pitman Business English 1: Clerical. Pitman, 1982.
警告：这些引文格式不一定是100％准确.