Cita APA (7th ed.)

Simpson, A. (1993). Mastering wordperfected 6 for Dos. BPB.pub.

Cita Chicago (17th ed.)

Simpson, Alan. Mastering Wordperfected 6 for Dos. New Delhi: BPB.pub, 1993.

Cita MLA (9th ed.)

Simpson, Alan. Mastering Wordperfected 6 for Dos. BPB.pub, 1993.