O'Leary, T. J., & Williams, B. K. (1992). Dbase iv: Release 1.1. McGraw-Hill.
芝加哥风格引文O'Leary, Timothy J., 与 Brian K. Williams. Dbase Iv: Release 1.1. New York: McGraw-Hill, 1992.
MLA引文O'Leary, Timothy J., 与 Brian K. Williams. Dbase Iv: Release 1.1. McGraw-Hill, 1992.
警告：这些引文格式不一定是100％准确.