TY  - BOOK
AU  - Martin, John H.
AU  - Stamp, David L.
AU  - Walden, richard P.
TI  - Principles of Field Crop Productin
SN  - 0130259675
U1  - 631.5 
PY  - 2006///
CY  - Columbus
PB  - Upper Saddle River, New Jersey
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Agronomy
ER  -