TY  - BOOK
AU  - Sparks, Donald L.,ed.
TI  - Advances in agronomy vol. 92
U1  - 631(047.1) P7.92 
PY  - 2007///
CY  - Amsterdam
PB  - Elsevier
KW  - Edited  Donald L. Sparks
KW  - Advances,Agronomy
ER  -