Cita APA (7a ed.)

(1991). Tools & utilities guide (1a. ed.). Borland International.

Cita Chicago Style (17a ed.)

Tools & Utilities Guide. 1a. ed. EEUU: Borland International, 1991.

Cita MLA (8a ed.)

Tools & Utilities Guide. 1a. ed. Borland International, 1991.