TY  - BOOK
AU  - Ahlgren, Gilbert H.
AU  - Klingman, Glenn C.
TI  - Principles of weed control
U1  - 632.5 21st ed.
PY  - 1957///
CY  - New York
PB  - John Wiley and Sons
KW  - Weed control
KW  - Weeds
KW  - Wolf
KW  - Dale E
ER  -