Cita APA (7a ed.)

Ashley, R., Fernández, J. N., & Ashley, P. (1989). Online communications software. McGraw-Hill.

Cita Chicago Style (17a ed.)

Ashley, Ruth, Judi N. Fernández, y Paul Ashley. Online Communications Software. New York: McGraw-Hill, 1989.

Cita MLA (9a ed.)

Ashley, Ruth, et al. Online Communications Software. McGraw-Hill, 1989.