APA (7th ed.) Citation
O'Leary, T. J., & Williams, B. K. (1992). Dbase iv: Release 1.1. McGraw-Hill.
Chicago Style (17th ed.) Citation
O'Leary, Timothy J., and Brian K. Williams. Dbase Iv: Release 1.1. New York: McGraw-Hill, 1992.
MLA (9th ed.) Citation
O'Leary, Timothy J., and Brian K. Williams. Dbase Iv: Release 1.1. McGraw-Hill, 1992.
Warning: These citations may not always be 100% accurate.