APA (7th ed.) Citation

Beckett, S. (1961). Happy days: A play in two acts. Faber and Faber.

Chicago Style (17th ed.) Citation

Beckett, Samuel. Happy Days: A Play in Two Acts. London: Faber and Faber, 1961.

MLA (9th ed.) Citation

Beckett, Samuel. Happy Days: A Play in Two Acts. Faber and Faber, 1961.