TY  - BOOK
AU  - UNITED NATIONS, (Statistical office of-).
ED  - UNITED NATIONS, (Statistical office of-).
TI  - Commodity trade statistics 1991
T2  - Statistical papers series-D
U1  - X:54.1N45.N91s, N1.41/UN 
PY  - 1992///
CY  - New York
PB  - United Nations.        
ER  -