Cita APA (7th ed.)

Murray, K. (1994). S.O.S. for WordPerfect. IDG Books.

Cita Chicago (17th ed.)

Murray, Katherine. S.O.S. for WordPerfect. San Mateo, Calif: IDG Books, 1994.

Cita MLA (9th ed.)

Murray, Katherine. S.O.S. for WordPerfect. IDG Books, 1994.