TY  - BOOK
AU  - Sparks, Donald L
TI  - Advances in agronomy. V. 93
SN  - 1001237987X
U1  - 631/635 
PY  - 2007///
CY  - USA
PB  - Academic Press
KW  - Antimicrobials
KW  - Eco regional research
ER  -