Sachais, M. D. (1990). VSAM: Tuning and advanced topics. Van Nostrand Reinhold.
芝加哥风格引文Sachais, Michael D. VSAM: Tuning and Advanced Topics. New York: Van Nostrand Reinhold, 1990.
MLA引文Sachais, Michael D. VSAM: Tuning and Advanced Topics. Van Nostrand Reinhold, 1990.
警告：这些引文格式不一定是100％准确.