TY  - BOOK
AU  - Fryer, J.D.
AU  - Makepeace, R.J
ED  - British Crop Protection Council
TI  - Weed control handbook. vol.1 : principles including plant growth regulators
SN  - 0632002093
U1  - 632.5802 
PY  - 1977///
CY  - Oxford
PB  - Blackwell
ER  -