Cita APA (7th ed.)

(1987). On-line information: A comprehensive business-user's guide / Brendan P. Walsh, Helen Butcher, and Alison Freund.

Cita Chicago (17th ed.)

On-line Information: A Comprehensive Business-user's Guide / Brendan P. Walsh, Helen Butcher, and Alison Freund. 1987.

Cita MLA (9th ed.)

On-line Information: A Comprehensive Business-user's Guide / Brendan P. Walsh, Helen Butcher, and Alison Freund. 1987.