TY  - BOOK
AU  - Pereverzev, V.D.
TI  - Distribution of fertilizer using a double-tier disc
U1  - 631.33 P38D 
PY  - 1968///
CY  - Bedford, U.K,.
PB  - National Institute of Agricultural Engineering
KW  - FERTILIZER SPREADERS
KW  - AGRICULTURAL MACHINERY
ER  -