Omar Khayyam. <br/><br/>
Rubaiyat of Omar Khayyam :  six plays of Calderon / 
tr. by Edward Fitzgerald ; [introd. by Ernest Ryhs]. 
 - London :  J.M. Dent,  [1935] 
 - Everyman's library. Poetry & the drama ;  Everyman's library. Poetry & the drama ;  819 .
<br/><br/> First published 1928. 
<br/><br/>Bibliography: p. xiii-xiv.