APA (7th ed.) Citation

Omar Khayyam, Burnett, V., & FitzGerald, E. (1970). The Rubaiyat of Omar Khayyam: The first version. The Folio Society.

Chicago Style (17th ed.) Citation

Omar Khayyam, Virgil Burnett, and Edward FitzGerald. The Rubaiyat of Omar Khayyam: The First Version. London: The Folio Society, 1970.

MLA (9th ed.) Citation

Omar Khayyam, et al. The Rubaiyat of Omar Khayyam: The First Version. The Folio Society, 1970.