APA (7th ed.) Citation

SIMPSON. (1991). dBase IV 1.1 programmer's instant reference (2nd edition.). Tech Publc.

Chicago Style (17th ed.) Citation

SIMPSON. DBase IV 1.1 Programmer's Instant Reference. 2nd edition. Singapore: Tech Publc, 1991.

MLA (8th ed.) Citation

SIMPSON. DBase IV 1.1 Programmer's Instant Reference. 2nd edition. Tech Publc, 1991.

Warning: These citations may not always be 100% accurate.