Cita APA (7th ed.)

Clifford, S. H., Sawyer, S. C., & Coulthard, G. J. (1993). dBASE III plus. Irwin.

Cita Chicago (17th ed.)

Clifford, Sarah Hutchinson, Stacey C. Sawyer, i Glen J. Coulthard. DBASE III Plus. Homewood, IL: Irwin, 1993.

Cita MLA (8th ed.)

Clifford, Sarah Hutchinson, et al. DBASE III Plus. Irwin, 1993.