Omar Khayyam

Resource Publications, Lulu.com, Alpha Edition, Legare Street Press, Okcir Press, Independently Published, Bloomsbury Publishing PLC, Cosimo Classics, Bardic Press, Orion Publishing Co, Aziloth Books, Aegypan, Willem V.D. Berg, Penguin Books LTD

Geschiedenis & politiek, Cadeauboeken, Literatuur