TY  - BOOK
AU  - Sapir Andre
AU  -  Lutz Ernst
TI  - "Trade in non-factor services, past trends and curr"
U1  - "X:54.1.N7, M0/UN" 
PY  - 1980///
CY  - Washington
PB  - World Bank U. S. A.   
KW  -  Economics
KW  - International Trade
N1  - World Bank Staff Working paper.410
ER  -