TY  - BOOK
AU  - Zimdahl,Robert L.
TI  - Fundamentals of weed science
SN  - 0127810625 (alk. paper)
U1  - 632.954 Z66F 
PY  - 1999///
CY  - San Diego
PB  - Academic Press
KW  - Weeds
KW  - Herbicides
UR  - http://catdir.loc.gov/catdir/description/els033/98085114.html
UR  - http://catdir.loc.gov/catdir/toc/els032/98085114.html
ER  -