TY  - BOOK
AU  - Pearson, C. Lorentz
TI  - Principles of Agronomy
U1  - 631.5 
PY  - 1967///
CY  - America
PB  - Reinhold Publishing Corporation
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Agronomy
ER  -