TY  - BOOK
AU  - Gilbert H. Ahlgren
AU  -  Glenn C. Klingman  Dale E. Wole
TI  - Principles of weed control
U1  - 632.58 
PY  - 1951///
CY  - New York
PB  - John wiley and Sons Inc.
N1  - Gilbert H. Ahlgren; Glenn C. Klingman & Dale E. Wole: Principles of weed control.  New York.  John wiley and Sons Inc.,, 1951.--(632.58AHL)
ER  -