Cita APA (7a ed.)

Omar Khayyam., a., Graves, R., & Ali-Shah, O. (1972). The original Rubaiyyat of Omar Khayaam (1st edition in the U.S.A.). Omen Press.

Cita Chicago Style (17a ed.)

Omar Khayyam., autor, Robert Graves, y Omar Ali-Shah. The Original Rubaiyyat of Omar Khayaam. 1st edition in the U.S.A. Tucson, Arizona: Omen Press, 1972.

Cita MLA (9a ed.)

Omar Khayyam., autor, et al. The Original Rubaiyyat of Omar Khayaam. 1st edition in the U.S.A. Omen Press, 1972.