TY  - BK
AU  - Swan,D.G.
ED  - Washington State University. Cooperative Extension Service
TI  - Principles of weed control
T2  - Extension Bulletin - Washington [State] University, Cooperative Extension Service (USA).
U1  - 79-360571 
PY  - 1978///
KW  - Weeds and weed control
N1  - AV: NAL (275.29 W27P)
ER  -