TY  - BOOK
AU  - The World Bank,
TI  - World And regional Supply and Demand Balances for Nitrogen, Phosphate, and Potash , 1989/90- 1995/96
SN  - 0821318829
U1  - 338.4766 
PY  - 1991///
CY  - Washington, D.C
PB  - World Bank
ER  -