TY  - SER
AU  -  Hazeldine, Norton F. W., 
TI  -  The Sufism of the Rubáiyát, or, the Secret of the Great Paradox 
PY  - 2015///
PB  -  Project Gutenberg, 
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/50619
ER  -