APA (7e ed.) Bronvermelding

Omar, K. (1941). The nectar of grace: 'Omar Khayyam's life and works. Government Central Press.

Chicago (17e ed.) Bronvermelding

Omar, Khayyam. The Nectar of Grace: 'Omar Khayyam's Life and Works. Hyderabad: Government Central Press, 1941.

MLA (9e ed.) Bronvermelding

Omar, Khayyam. The Nectar of Grace: 'Omar Khayyam's Life and Works. Government Central Press, 1941.