Beckett, S. (1961). Happy days: A play in two acts. Faber and Faber.
Chicago Style (17. basım) AtıfBeckett, Samuel. Happy Days: A Play in Two Acts. London: Faber and Faber, 1961.
MLA (9th ed.) AtıfBeckett, Samuel. Happy Days: A Play in Two Acts. Faber and Faber, 1961.
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