Tohutoro APA (7th ed.)
Lamb, H. Omar Khayyam (1a. ed.). Sudamericana.
Tohutoru Kātū Chicago (17th ed.)
Lamb, Harold. Omar Khayyam. 1a. ed. Bs As: Sudamericana.
Tohutoro MLA (9th ed.)
Lamb, Harold. Omar Khayyam. 1a. ed. Sudamericana.
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