Beckett, S. (1961). Happy days: A play in two acts. Faber and Faber.
Cita Chicago (17th ed.)Beckett, Samuel. Happy Days: A Play in Two Acts. London: Faber and Faber, 1961.
Cita MLA (9th ed.)Beckett, Samuel. Happy Days: A Play in Two Acts. Faber and Faber, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.