TY  - BOOK
AU  - UNITED NATIONS.
ED  - UNITED NATIONS.
TI  - Commodity trade statistics 1991
T2  - Statistical Papers Series D
U1  - "X:54.1N45.N91s, N4.41/UN" 
PY  - 1994///
CY  - New
PB  - York United Nations.     
ER  -