Cita APA (7a ed.)

Sherriff, R. C., & Haddon, E. (1969). The long sunset: A play in three acts (1st. ed., 6th imp.). Longmans.

Cita Chicago Style (17a ed.)

Sherriff, R. C., y Elizabeth Haddon. The Long Sunset: A Play in Three Acts. 1st. ed., 6th imp. [London]: Longmans, 1969.

Cita MLA (9a ed.)

Sherriff, R. C., y Elizabeth Haddon. The Long Sunset: A Play in Three Acts. 1st. ed., 6th imp. Longmans, 1969.