TY  - BOOK
TI  - "FAO Fertilizer Yearbook, 1978."
T2  - FAO Statistics series; mp.23
U1  - "X9(J):24n. 1N45 - N78, L8/UN" 
PY  - 1979///
CY  - Rome
PB  - Fodd & Agriculture organization of the UN 
ER  -