TY  - BOOK
AU  - Geyl Pieter
AU  -  Sorokin Pitirim A
AU  -  Toynbee Arnold
TI  - Pattern of the Past :  Can we determine it?
U1  - Y:1, H9 
PY  - 1949///
CY  - New York  
PB  -  Greenwood Press        
ER  -