Cita APA (7th ed.)

Hutchinson, S. E., & Sawyer, S. C. (1993). Dbase III plus. Irwin.

Cita Chicago (17th ed.)

Hutchinson, Sarah E., i Stacey C. Sawyer. Dbase III Plus. Illinois: Irwin, 1993.

Cita MLA (9th ed.)

Hutchinson, Sarah E., i Stacey C. Sawyer. Dbase III Plus. Irwin, 1993.