TY  - BOOK
AU  - Carlson, Peter S.
TI  - Biology of Crop Productivity
U1  - 631 
PY  - 1980///
CY  - New York
PB  - Academic Press
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Agronomy
KW  - Crop productivity
ER  -