TY  - SER
AU  - Sparks,Donald L.
TI  - Advances in agronomy
SN  - 9780123748195
AV  - S405 .A24
PY  - 2009///
CY  - San Diego, Amsterdam
PB  - Elsevier
KW  - Agronomy
KW  - Agriculture
KW  - Experimentation
KW  - Recherche
KW  - Agricultural science
KW  - Research
ER  -