Cita APA (7a ed.)

Allen, M., Smith, S., Deane, S., Longley, E., Coughlan, P., Docherty, T., . . . Heaney, S. (1997). Seamus Heaney. St. Martin.

Cita Chicago Style (17a ed.)

Allen, Michael, et al. Seamus Heaney. New York: St. Martin, 1997.

Cita MLA (9a ed.)

Allen, Michael, et al. Seamus Heaney. St. Martin, 1997.