TY  - BOOK
AU  - Kravis Irving B and others
TI  - System of international comparisons of gross product and purchasing power
T2  - "United Nations, International conparison Project: Phase-one"
U1  - "X:3.1-1.N5s, L5/UN" 
PY  - 1975///
CY  - London
PB  - John Hopins University Press    
KW  - Distribution
ER  -