ʿUmar Ḫaiyām. (1982). The ruba'iyat (Repr.). Penguin Books.
Chicago Style (17th ed.) CitationʿUmar Ḫaiyām. The Ruba'iyat. Repr. Harmondsworth, Middlesex: Penguin Books, 1982.
MLA (9th ed.) CitationʿUmar Ḫaiyām. The Ruba'iyat. Repr. Penguin Books, 1982.
Warning: These citations may not always be 100% accurate.