APA (7th ed.) Citation

Boies, R., & Dickler, H. (1987). dBase programmer's field guide. Ashton-Tate.

Chicago Style (17th ed.) Citation

Boies, Robert, and Howard Dickler. DBase Programmer's Field Guide. Torrance, Calif.: Ashton-Tate, 1987.

MLA (9th ed.) Citation

Boies, Robert, and Howard Dickler. DBase Programmer's Field Guide. Ashton-Tate, 1987.