TY  - BOOK
AU  - Ignatieff, vladimir
AU  - Page, Harold J.
TI  - Efficient use of fertilizers
U1  - 631.8 
PY  - 1960///
CY  - Rome
PB  - Food and Agriculture organization of the united Nations
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Fertilizers
ER  -