TY  - BOOK
AU  - Sparks, Donald L.,ed
TI  - Advances in agronomy
U1  - 631(047.1) P6.90 
PY  - 2006///
CY  - Amsterdam
PB  - Elsevier / Academic Press
KW  - Edited  Donald L. Sparks
KW  - Agronomy
ER  -