APA (7th ed.) Citation

Omar Khayyam, Ritz Gerald, E., & Castellot, J. (1918). Rubaiyat. [s.n.].

Chicago Style (17th ed.) Citation

Omar Khayyam, Edward Ritz Gerald, and José Castellot. Rubaiyat. New York: [s.n.], 1918.

MLA (9th ed.) Citation

Omar Khayyam, et al. Rubaiyat. [s.n.], 1918.