Oppenheim, C., & Citroen, C. L. (1989). Perspectives in information management 1. Butterworths.
芝加哥风格引文Oppenheim, Charles, 与 Charles L. Citroen. Perspectives in Information Management 1. London: Butterworths, 1989.
MLA引文Oppenheim, Charles, 与 Charles L. Citroen. Perspectives in Information Management 1. Butterworths, 1989.
警告：这些引文格式不一定是100％准确.