Pest Control Farmer`s Handbook
Ripper, W. E. and others,
Pest Control Farmer`s Handbook Textual Documents W. E. Ripper - Cambridge: Pest Control Ltd. - 99.
Pest Control Plant injuries, diseases & pests
632
Pest Control Farmer`s Handbook Textual Documents W. E. Ripper - Cambridge: Pest Control Ltd. - 99.
Pest Control Plant injuries, diseases & pests
632